#include <windows.h>
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
char szClassName[ ] = "WindowsApp";
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 */
"Windows App", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
544, /* The programs width */
375, /* 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);
/* 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 */
{
/////////////////// código añadido al generado por dev c++
void DibujarBitmap (HDC hdc, HBITMAP hBitmap, int xInicio, int yInicio);
HDC hdc;
PAINTSTRUCT ps;
static HBITMAP hBitmapFil;
case WM_CREATE:
hBitmapFil = (HBITMAP)LoadImage(NULL, "c:\\temp\\quimica3.bmp", IMAGE_BITMAP,0, 0, LR_LOADFROMFILE);
break;
case WM_PAINT:
hdc = BeginPaint (hwnd, &ps);
DibujarBitmap (hdc, hBitmapFil, 10, 10);
EndPaint (hwnd, &ps);
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;
}
//////////////// función extraída del libro de Charles Petzold
void DibujarBitmap (HDC hdc, HBITMAP hBitmap, int xInicio, int yInicio)
{
BITMAP bm;
HDC hdcMem;
DWORD dwSize;
POINT ptSize, ptOrg;
hdcMem = CreateCompatibleDC (hdc);
SelectObject (hdcMem, hBitmap);
SetMapMode (hdcMem, GetMapMode (hdc));
GetObject (hBitmap, sizeof (BITMAP), (LPVOID)&bm);
ptSize.x = bm.bmWidth;
ptSize.y = bm.bmHeight;
DPtoLP (hdc, &ptSize, 1);
ptOrg.x = 0;
ptOrg.y = 0;
DPtoLP (hdcMem, &ptOrg, 1);
BitBlt (hdc, xInicio, yInicio, ptSize.x, ptSize.y, hdcMem, ptOrg.x, ptOrg.y, SRCCOPY);
DeleteObject (hdcMem);
}
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