vbltest.c File Reference

#include <windows.h>
#include <tchar.h>

Include dependency graph for vbltest.c:

Go to the source code of this file.

Macros
#define	CURRENT_BMPS   4
#define	CURRENT_ICONS   1
#define	SCALE   1.5
#define	OFFSET   5

Functions
BOOL WINAPI	GdiAlphaBlend (HDC hdcDst, int xDst, int yDst, int wDst, int hDst, HDC hdcSrc, int xSrc, int ySrc, int wSrc, int hSrc, BLENDFUNCTION blendFunction)
BOOL WINAPI	GdiTransparentBlt (HDC hdcDst, int xDst, int yDst, int wDst, int hDst, HDC hdcSrc, int xSrc, int ySrc, int wSrc, int hSrc, UINT crTransparent)
static LRESULT CALLBACK	WndProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
static ATOM	MyRegisterClass (HINSTANCE hInstance)
static BOOL	InitInstance (HINSTANCE hInstance, int nCmdShow)
int WINAPI	_tWinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)

Variables
HINSTANCE	hInst
TCHAR	szWindowClass [] = _T("testclass")

Macro Definition Documentation

CURRENT_BMPS

#define CURRENT_BMPS   4

Definition at line 21 of file vbltest.c.

CURRENT_ICONS

#define CURRENT_ICONS   1

Definition at line 22 of file vbltest.c.

OFFSET

#define OFFSET   5

Definition at line 24 of file vbltest.c.

SCALE

#define SCALE   1.5

Definition at line 23 of file vbltest.c.

Function Documentation

_tWinMain()

int WINAPI _tWinMain	(	HINSTANCE	hInstance,
		HINSTANCE	hPrevInstance,
		LPTSTR	lpCmdLine,
		int	nCmdShow
	)

Definition at line 198 of file vbltest.c.

{
    MSG msg;
 
    MyRegisterClass(hInstance);
 
    if (!InitInstance(hInstance, nCmdShow))
    {
        return FALSE;
    }
 
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
 
    return (int)msg.wParam;
}

GdiAlphaBlend()

BOOL WINAPI GdiAlphaBlend	(	HDC	hdcDst,
		int	xDst,
		int	yDst,
		int	wDst,
		int	hDst,
		HDC	hdcSrc,
		int	xSrc,
		int	ySrc,
		int	wSrc,
		int	hSrc,
		BLENDFUNCTION	blendFunction
	)

Referenced by WndProc().

GdiTransparentBlt()

BOOL WINAPI GdiTransparentBlt	(	HDC	hdcDst,
		int	xDst,
		int	yDst,
		int	wDst,
		int	hDst,
		HDC	hdcSrc,
		int	xSrc,
		int	ySrc,
		int	wSrc,
		int	hSrc,
		UINT	crTransparent
	)

Referenced by ColorKeyedMaskBlt(), DrawBackgroundPreview(), ShowResolutionPreview(), ShowScreenSaverPreview(), and WndProc().

InitInstance()

static BOOL InitInstance ( HINSTANCE  hInstance, int  nCmdShow  )

static

Definition at line 166 of file vbltest.c.

{
   HWND hWnd;
 
   hInst = hInstance;
 
   hWnd = CreateWindowEx(0,
                         szWindowClass,
                         _T("Various blit and blend operations"),
                         WS_OVERLAPPEDWINDOW,
                         CW_USEDEFAULT,
                         CW_USEDEFAULT,
                         640,
                         640,
                         NULL,
                         NULL,
                         hInstance,
                         NULL);
 
   if (!hWnd)
   {
      return FALSE;
   }
 
   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);
 
   return TRUE;
}

Referenced by _tWinMain().

MyRegisterClass()

static ATOM MyRegisterClass ( HINSTANCE  hInstance )

static

Definition at line 143 of file vbltest.c.

{
    WNDCLASSEX wcex;
 
    wcex.cbSize = sizeof(WNDCLASSEX);
 
    wcex.style         = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc   = WndProc;
    wcex.cbClsExtra    = 0;
    wcex.cbWndExtra    = 0;
    wcex.hInstance     = hInstance;
    wcex.hIcon         = NULL;
    wcex.hCursor       = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName  = NULL;
    wcex.lpszClassName = szWindowClass;
    wcex.hIconSm       = NULL;
 
    return RegisterClassEx(&wcex);
}

Referenced by _tWinMain().

WndProc()

static LRESULT CALLBACK WndProc ( HWND  hWnd, UINT  message, WPARAM  wParam, LPARAM  lParam  )

static

Definition at line 30 of file vbltest.c.

{
    static HBITMAP hbmList[CURRENT_BMPS];
    static HICON hicList[CURRENT_ICONS];
 
    switch (message)
    {
        case WM_CREATE:
        {
            hbmList[0] = (HBITMAP)LoadImage(hInst, MAKEINTRESOURCE(100), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
            hbmList[1] = (HBITMAP)LoadImage(hInst, MAKEINTRESOURCE(400), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
            hbmList[2] = (HBITMAP)LoadImage(hInst, MAKEINTRESOURCE(800), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
            hbmList[3] = (HBITMAP)LoadImage(hInst, MAKEINTRESOURCE(2400), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
            hicList[0] = (HICON)LoadIcon(hInst, MAKEINTRESOURCE(3200));
            break;
        }
 
        case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc, hdcMem;
            BITMAP bitmap;
            BLENDFUNCTION bfunc;
            int x = 0, y = 0, i;
            hdc = BeginPaint(hWnd, &ps);
            hdcMem = CreateCompatibleDC(hdc);
 
            bfunc.AlphaFormat = AC_SRC_ALPHA;
            bfunc.BlendFlags = 0;
            bfunc.BlendOp = AC_SRC_OVER;
            bfunc.SourceConstantAlpha = 128;
 
            /* bitmaps */
            for(i = 0; i < CURRENT_BMPS; i++)
            {
                y = 0;
                SelectObject(hdcMem, hbmList[i]);
                GetObject(hbmList[i], sizeof(BITMAP), &bitmap);
 
                /* bit blt */
                BitBlt(hdc, x, y, bitmap.bmWidth, bitmap.bmHeight, hdcMem, 0, 0, SRCCOPY);
                y += bitmap.bmHeight + OFFSET;
 
                /* stretch blt, org size */
                StretchBlt(hdc, x, y, bitmap.bmWidth, bitmap.bmHeight, hdcMem, 0, 0, bitmap.bmWidth, bitmap.bmHeight, SRCCOPY);
                y += bitmap.bmHeight + OFFSET;
 
                /* stretch blt, scaled */
                StretchBlt(hdc, x, y, bitmap.bmWidth*SCALE, bitmap.bmHeight*SCALE, hdcMem, 0, 0, bitmap.bmWidth, bitmap.bmHeight, SRCCOPY);
                y += bitmap.bmHeight*SCALE + OFFSET;
 
                /* transparent blt, transparency: grey */
                GdiTransparentBlt(hdc, x, y, bitmap.bmWidth, bitmap.bmHeight, hdcMem, 0, 0, bitmap.bmWidth, bitmap.bmHeight, 128*256*256+128*256+128);
                y += bitmap.bmHeight + OFFSET;
 
                /* transparent blt, transparency: grey, scaled */
                GdiTransparentBlt(hdc, x, y, bitmap.bmWidth*SCALE, bitmap.bmHeight*SCALE, hdcMem, 0, 0, bitmap.bmWidth, bitmap.bmHeight, 128*256*256+128*256+128);
                y += bitmap.bmHeight*SCALE + OFFSET;
 
                /* alpha blend, org size */
                GdiAlphaBlend(hdc, x, y, bitmap.bmWidth, bitmap.bmHeight, hdcMem, 0, 0, bitmap.bmWidth, bitmap.bmHeight, bfunc);
                y += bitmap.bmHeight + OFFSET;
 
                /* alpha blend, scaled */
                GdiAlphaBlend(hdc, x, y, bitmap.bmWidth*SCALE, bitmap.bmHeight*SCALE, hdcMem, 0, 0, bitmap.bmWidth, bitmap.bmHeight, bfunc);
                y += bitmap.bmHeight*SCALE + OFFSET;
 
                x += bitmap.bmWidth*SCALE + OFFSET;
            }
 
            /* icons */
            for(i = 0; i < CURRENT_ICONS; i++)
            {
                y = 0;
                /* pure icon */
                DrawIcon(hdc, x, y, hicList[i]);
                y += bitmap.bmHeight + OFFSET;
 
                /* normal icon using Ex */
                DrawIconEx(hdc, x, y, hicList[i], 0, 0, 0, NULL, DI_NORMAL);
                y += bitmap.bmHeight + OFFSET;
 
                /* normal icon using Ex with bigger size */
                DrawIconEx(hdc, x, y, hicList[i], bitmap.bmWidth, bitmap.bmHeight, 0, NULL, DI_NORMAL);
                y += bitmap.bmHeight + OFFSET;
 
                /* only icon using Ex */
                DrawIconEx(hdc, x, y, hicList[i], 0, 0, 0, NULL, DI_IMAGE);
                y += bitmap.bmHeight + OFFSET;
 
                /* mask using Ex */
                DrawIconEx(hdc, x, y, hicList[i], 0, 0, 0, NULL, DI_MASK);
                y += bitmap.bmHeight + OFFSET;
 
                x += bitmap.bmWidth*SCALE + OFFSET;
            }
 
            DeleteDC(hdcMem);
            EndPaint(hWnd, &ps);
            break;
        }
 
        case WM_DESTROY:
            PostQuitMessage(0);
            break;
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}

Referenced by MyRegisterClass().

Variable Documentation

hInst

HINSTANCE hInst

Definition at line 26 of file vbltest.c.

Referenced by InitInstance(), and WndProc().

szWindowClass

TCHAR szWindowClass[] = _T("testclass")

Definition at line 27 of file vbltest.c.

Referenced by InitInstance(), and MyRegisterClass().