mirror of
https://github.com/reactos/reactos.git
synced 2024-11-10 00:34:39 +00:00
139 lines
3.3 KiB
C
139 lines
3.3 KiB
C
|
|
/*
|
|
* Windows 2000 Graphics API Black Book
|
|
* (BitBlt Bitmap Rendering Demo)
|
|
*
|
|
* Created by Damon Chandler <dmc27@ee.cornell.edu>
|
|
* Updates can be downloaded at: <www.coriolis.com>
|
|
*
|
|
* Please do not hesistate to e-mail me at dmc27@ee.cornell.edu
|
|
* if you have any questions about this code.
|
|
*/
|
|
|
|
|
|
#include <windows.h>
|
|
#include <string.h>
|
|
|
|
HINSTANCE HInst;
|
|
const char* WndClassName = "GMainWnd";
|
|
LRESULT CALLBACK MainWndProc(HWND HWnd, UINT Msg, WPARAM WParam,
|
|
LPARAM LParam);
|
|
|
|
|
|
int APIENTRY WinMain(HINSTANCE HInstance, HINSTANCE HPrevInstance,
|
|
LPTSTR lpCmdLine, int nCmdShow)
|
|
{
|
|
WNDCLASS wc;
|
|
MSG msg;
|
|
|
|
HInst = HInstance;
|
|
|
|
memset(&wc, 0, sizeof(WNDCLASS));
|
|
|
|
wc.style = CS_VREDRAW | CS_HREDRAW | CS_DBLCLKS;
|
|
wc.lpfnWndProc = MainWndProc;
|
|
wc.hInstance = HInstance;
|
|
wc.hCursor = LoadCursor(NULL, (LPCTSTR)IDC_ARROW);
|
|
/* wc.hbrBackground = reinterpret_cast<HBRUSH>(COLOR_BTNFACE + 1); */
|
|
wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
|
|
wc.lpszClassName = WndClassName;
|
|
|
|
if (RegisterClass(&wc))
|
|
{
|
|
HWND HWnd =
|
|
CreateWindow(
|
|
WndClassName, TEXT("BitBlt Bitmap Rendering Demo"),
|
|
WS_OVERLAPPED | WS_SYSMENU | WS_CAPTION |
|
|
WS_VISIBLE | WS_CLIPSIBLINGS,
|
|
0, 0, 220, 230,
|
|
NULL, NULL, HInst, NULL
|
|
);
|
|
|
|
if (HWnd)
|
|
{
|
|
ShowWindow(HWnd, nCmdShow);
|
|
UpdateWindow(HWnd);
|
|
|
|
while (GetMessage(&msg, NULL, 0, 0))
|
|
{
|
|
TranslateMessage(&msg);
|
|
DispatchMessage(&msg);
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* image related */
|
|
BITMAP bmp;
|
|
LPCSTR filename = TEXT("lena.bmp");
|
|
HDC HMemDC = NULL;
|
|
HBITMAP HOldBmp = NULL;
|
|
|
|
LRESULT CALLBACK MainWndProc(HWND HWnd, UINT Msg, WPARAM WParam,
|
|
LPARAM LParam)
|
|
{
|
|
switch (Msg)
|
|
{
|
|
case WM_CREATE:
|
|
{
|
|
/* create a memory DC */
|
|
HMemDC = CreateCompatibleDC(NULL);
|
|
if (HMemDC)
|
|
{
|
|
/* load a bitmap from file */
|
|
HBITMAP HBmp =
|
|
/* static_cast<HBITMAP> */(
|
|
LoadImage(HInst, filename, IMAGE_BITMAP,
|
|
0, 0, LR_LOADFROMFILE)
|
|
);
|
|
if (HBmp)
|
|
{
|
|
/* extract dimensions of the bitmap */
|
|
GetObject(HBmp, sizeof(BITMAP), &bmp);
|
|
|
|
/* associate the bitmap with the memory DC */
|
|
/* HOldBmp = static_cast<HBITMAP> */
|
|
(SelectObject(HMemDC, HBmp)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
case WM_PAINT:
|
|
{
|
|
PAINTSTRUCT ps;
|
|
const HDC Hdc = BeginPaint(HWnd, &ps);
|
|
#if 0
|
|
try
|
|
#endif
|
|
{
|
|
|
|
/* TODO: add palette support (see Chapter 9)... */
|
|
|
|
|
|
BitBlt(Hdc, 20, 15,
|
|
bmp.bmWidth, bmp.bmHeight,
|
|
HMemDC, 0, 0,
|
|
SRCCOPY);
|
|
}
|
|
#if 0
|
|
catch (...)
|
|
#endif
|
|
{
|
|
EndPaint(HWnd, &ps);
|
|
}
|
|
EndPaint(HWnd, &ps);
|
|
break;
|
|
}
|
|
case WM_DESTROY:
|
|
{
|
|
/* clean up */
|
|
DeleteObject(SelectObject(HMemDC, HOldBmp));
|
|
DeleteDC(HMemDC);
|
|
|
|
PostQuitMessage(0);
|
|
return 0;
|
|
}
|
|
}
|
|
return DefWindowProc(HWnd, Msg, WParam, LParam);
|
|
}
|