Bekijk de onderstaande video om te zien hoe je onze site als een web app op je startscherm installeert.
Opmerking: Deze functie is mogelijk niet beschikbaar in sommige browsers.
Ik vind het een beetje lastig om zo uit te leggen, voeg me maar toe op msn: paul @ dumpendiezooi . nl
(zonder spaties of course)
Ik ben ook zelf pas heel even bezig met de win32 api, ik was ook lang met die buttons bezig maar nu is het gelukt.
HWND Button1 = CreateWindowEx(NULL,"BUTTON","De text op de knop",WS_CHILD |WS_VISIBLE | BS_PUSHBUTTON,10,10,200,25,hwnd,NULL,hThisInstance,NULL);
Code:HWND Button1 = CreateWindowEx(NULL,"BUTTON","De text op de knop",WS_CHILD |WS_VISIBLE | BS_PUSHBUTTON,10,10,200,25,hwnd,NULL,hThisInstance,NULL);
de hwnd (na de 4 getallen) is de pointer naar het scherm waar je het in wilt, hThisInstance snap je wel
#include <windows.h>
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] = "Knoppen";
int WINAPI WinMain (HINSTANCE hThisInstance,
HINSTANCE hPrevInstance,
LPSTR lpszArgument,
int nFunsterStil)
{
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof (WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use Windows's default color as the background of the window */
wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;
/* Register the window class, and if it fails quit the program */
if (!RegisterClassEx (&wincl))
return 0;
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx (
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Knoppen", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
300, /* The programs width */
300, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow (hwnd, nFunsterStil);
[b]HWND Button1 = CreateWindowEx(NULL,"BUTTON","De text op de knop",WS_CHILD |WS_VISIBLE | BS_PUSHBUTTON,10,10,200,25,hwnd,NULL,hThisInstance,NULL);[/b]
/* Run the message loop. It will run until GetMessage() returns 0 */
while (GetMessage (&messages, NULL, 0, 0))
{
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
/* The program return-value is 0 - The value that PostQuitMessage() gave */
return messages.wParam;
}
/* This function is called by the Windows function DispatchMessage() */
LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message) /* handle the messages */
{
case WM_DESTROY:
PostQuitMessage (0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc (hwnd, message, wParam, lParam);
}
return 0;
}
#include <windows.h>
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] = "Knoppen";
[B]char szClassName2[ ] = "Knoppen2";[/B]
HWND Button1;
[B]HWND Button2;[/B]
int WINAPI WinMain (HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil){
HWND hwnd; /* This is the handle for our window */
[B]HWND hwnd2;[/B]
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
[B]WNDCLASSEX wincl2;[/B]
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof (WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use Windows's default color as the background of the window */
wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;
[B]/* The Window structure */
wincl2.hInstance = hThisInstance;
wincl2.lpszClassName = szClassName2;
wincl2.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl2.style = CS_DBLCLKS; /* Catch double-clicks */
wincl2.cbSize = sizeof (WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl2.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl2.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl2.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl2.lpszMenuName = NULL; /* No menu */
wincl2.cbClsExtra = 0; /* No extra bytes after the window class */
wincl2.cbWndExtra = 0; /* structure or the window instance */
/* Use Windows's default color as the background of the window */
wincl2.hbrBackground = (HBRUSH) COLOR_BACKGROUND;[/B]
/* Register the window class, and if it fails quit the program */
if (!RegisterClassEx (&wincl)){
return 0;
}
[B]/* Register the window class, and if it fails quit the program */
if (!RegisterClassEx (&wincl2)){
return 0;
}[/B]
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx (
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Knoppen", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
10, /* Windows decides the position */
10, /* where the window ends up on the screen */
300, /* The programs width */
300, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
[B]/* The class is registered, let's create the program*/
hwnd2 = CreateWindowEx (
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Knoppen - Scherm 2", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
400, /* Windows decides the position */
10, /* where the window ends up on the screen */
300, /* The programs width */
300, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);[/B]
/* Make the window visible on the screen */
ShowWindow (hwnd, nFunsterStil);
[B]ShowWindow (hwnd2,nFunsterStil);[/B]
Button1 = CreateWindowEx(NULL,"BUTTON","Ga Naar Scherm 2",WS_CHILD |WS_VISIBLE | BS_PUSHBUTTON,10,10,200,25,hwnd,NULL,hThisInstance,NULL);
[B]Button2 = CreateWindowEx(NULL,"BUTTON","Ga Naar Scherm 1",WS_CHILD | BS_PUSHBUTTON,10,10,200,25,hwnd2,NULL,hThisInstance,NULL);[/B]
/* Run the message loop. It will run until GetMessage() returns 0 */
while (GetMessage (&messages, NULL, 0, 0)){
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
/* The program return-value is 0 - The value that PostQuitMessage() gave */
return messages.wParam;
}
/* This function is called by the Windows function DispatchMessage() */
LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){
switch (message){ /* handle the messages */
[B] case WM_COMMAND:
if(HIWORD(wParam) == BN_CLICKED){
if((HWND)lParam == Button1){
ShowWindow(Button1,SW_HIDE);
ShowWindow(Button2,SW_SHOW);
}else if((HWND)lParam == Button2){
ShowWindow(Button1,SW_SHOW);
ShowWindow(Button2,SW_HIDE);
}
}
break;[/B]
case WM_DESTROY:
PostQuitMessage (0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc (hwnd, message, wParam, lParam);
}
return 0;
}
#include <windows.h>
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] = "Knoppen";
char szClassName2[ ] = "Knoppen2";
HWND Button1;
HWND ShowScreen;
int WINAPI WinMain (HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil){
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof (WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use Windows's default color as the background of the window */
wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;
/* Register the window class, and if it fails quit the program */
if (!RegisterClassEx (&wincl)){
return 0;
}
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx (
0, /* Extended possibilites for variation */
szClassName, /* Classname */
"Knoppen", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
10, /* Windows decides the position */
10, /* where the window ends up on the screen */
300, /* The programs width */
300, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow (hwnd, nFunsterStil);
Button1 = CreateWindowEx(NULL,"BUTTON","1",WS_CHILD |WS_VISIBLE | BS_PUSHBUTTON,10,40,25,25,hwnd,NULL,hThisInstance,NULL);
ShowScreen = CreateWindowEx(NULL,"STATIC","het scherm",WS_CHILD |WS_VISIBLE | BS_PUSHBUTTON,10,10,260,25,hwnd,NULL,hThisInstance,NULL);
/* Run the message loop. It will run until GetMessage() returns 0 */
while (GetMessage (&messages, NULL, 0, 0)){
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
/* The program return-value is 0 - The value that PostQuitMessage() gave */
return messages.wParam;
}
/* This function is called by the Windows function DispatchMessage() */
LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){
switch (message){ /* handle the messages */
case WM_COMMAND:
if(HIWORD(wParam) == BN_CLICKED){
if((HWND)lParam == Button1){
SetWindowText(ShowScreen,"1");
}
}
break;
case WM_DESTROY:
PostQuitMessage (0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc (hwnd, message, wParam, lParam);
}
return 0;
}
Zoiets?
Code:#include <windows.h> /* Declare Windows procedure */ LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM); /* Make the class name into a global variable */ char szClassName[ ] = "Knoppen"; char szClassName2[ ] = "Knoppen2"; HWND Button1; HWND ShowScreen; int WINAPI WinMain (HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument, int nFunsterStil){ HWND hwnd; /* This is the handle for our window */ MSG messages; /* Here messages to the application are saved */ WNDCLASSEX wincl; /* Data structure for the windowclass */ /* The Window structure */ wincl.hInstance = hThisInstance; wincl.lpszClassName = szClassName; wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */ wincl.style = CS_DBLCLKS; /* Catch double-clicks */ wincl.cbSize = sizeof (WNDCLASSEX); /* Use default icon and mouse-pointer */ wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION); wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION); wincl.hCursor = LoadCursor (NULL, IDC_ARROW); wincl.lpszMenuName = NULL; /* No menu */ wincl.cbClsExtra = 0; /* No extra bytes after the window class */ wincl.cbWndExtra = 0; /* structure or the window instance */ /* Use Windows's default color as the background of the window */ wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND; /* Register the window class, and if it fails quit the program */ if (!RegisterClassEx (&wincl)){ return 0; } /* The class is registered, let's create the program*/ hwnd = CreateWindowEx ( 0, /* Extended possibilites for variation */ szClassName, /* Classname */ "Knoppen", /* Title Text */ WS_OVERLAPPEDWINDOW, /* default window */ 10, /* Windows decides the position */ 10, /* where the window ends up on the screen */ 300, /* The programs width */ 300, /* and height in pixels */ HWND_DESKTOP, /* The window is a child-window to desktop */ NULL, /* No menu */ hThisInstance, /* Program Instance handler */ NULL /* No Window Creation data */ ); /* Make the window visible on the screen */ ShowWindow (hwnd, nFunsterStil); Button1 = CreateWindowEx(NULL,"BUTTON","1",WS_CHILD |WS_VISIBLE | BS_PUSHBUTTON,10,40,25,25,hwnd,NULL,hThisInstance,NULL); ShowScreen = CreateWindowEx(NULL,"STATIC","het scherm",WS_CHILD |WS_VISIBLE | BS_PUSHBUTTON,10,10,260,25,hwnd,NULL,hThisInstance,NULL); /* Run the message loop. It will run until GetMessage() returns 0 */ while (GetMessage (&messages, NULL, 0, 0)){ /* Translate virtual-key messages into character messages */ TranslateMessage(&messages); /* Send message to WindowProcedure */ DispatchMessage(&messages); } /* The program return-value is 0 - The value that PostQuitMessage() gave */ return messages.wParam; } /* This function is called by the Windows function DispatchMessage() */ LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam){ switch (message){ /* handle the messages */ case WM_COMMAND: if(HIWORD(wParam) == BN_CLICKED){ if((HWND)lParam == Button1){ SetWindowText(ShowScreen,"1"); } } break; case WM_DESTROY: PostQuitMessage (0); /* send a WM_QUIT to the message queue */ break; default: /* for messages that we don't deal with */ return DefWindowProc (hwnd, message, wParam, lParam); } return 0; }
Welke errors krijg je?
maar WELKE error?
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