下面是win32的代码,显示一副黑白的位图
请问如何改成彩色的,比如黑变成红,白变成蓝
谢谢!
#include <windows.h>LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("Bricks2") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ; wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("CreateBitmap Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ; ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ; while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static BITMAP bitmap = { 0, 2, 2, 2, 1, 1 } ;
static BYTE bits [] = { 0x80, 0x00,
0x40, 0x00 } ; static HBITMAP hBitmap ;
static int cxClient, cyClient, cxSource, cySource ;
HDC hdc, hdcMem ;
PAINTSTRUCT ps ;
switch (message)
{
case WM_CREATE:
bitmap.bmBits = bits ;
hBitmap = CreateBitmapIndirect (&bitmap) ;
cxSource = bitmap.bmWidth ;
cySource = bitmap.bmHeight ;
return 0 ; case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ; case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ; hdcMem = CreateCompatibleDC (hdc) ;
SelectObject (hdcMem, hBitmap) ;
StretchBlt (hdc, 0, 0, cxClient, cyClient,
hdcMem, 0, 0, cxSource, cySource, SRCCOPY) ; DeleteDC (hdcMem) ;
EndPaint (hwnd, &ps) ;
return 0 ; case WM_DESTROY:
DeleteObject (hBitmap) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
请问如何改成彩色的,比如黑变成红,白变成蓝
谢谢!
#include <windows.h>LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName [] = TEXT ("Bricks2") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ; wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;
if (!RegisterClass (&wndclass))
{
MessageBox (NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}
hwnd = CreateWindow (szAppName, TEXT ("CreateBitmap Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ; ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ; while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static BITMAP bitmap = { 0, 2, 2, 2, 1, 1 } ;
static BYTE bits [] = { 0x80, 0x00,
0x40, 0x00 } ; static HBITMAP hBitmap ;
static int cxClient, cyClient, cxSource, cySource ;
HDC hdc, hdcMem ;
PAINTSTRUCT ps ;
switch (message)
{
case WM_CREATE:
bitmap.bmBits = bits ;
hBitmap = CreateBitmapIndirect (&bitmap) ;
cxSource = bitmap.bmWidth ;
cySource = bitmap.bmHeight ;
return 0 ; case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ; case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ; hdcMem = CreateCompatibleDC (hdc) ;
SelectObject (hdcMem, hBitmap) ;
StretchBlt (hdc, 0, 0, cxClient, cyClient,
hdcMem, 0, 0, cxSource, cySource, SRCCOPY) ; DeleteDC (hdcMem) ;
EndPaint (hwnd, &ps) ;
return 0 ; case WM_DESTROY:
DeleteObject (hBitmap) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}
static BYTE bits [] = { 0x80, 0x00,0x40, 0x00 } ;修改下BITMAP信息,并把bitmap数据bits改下就可以了.
{
static BITMAPINFOHEADER bmheader = {sizeof(BITMAPINFOHEADER), 2, 2, 1, 24, BI_RGB};
static BYTE bits [] = {0x00, 0x00, 0xff, 0xFF,0x00, 0x00, 0x00, 0x00,0xff, 0x00, 0x00, 0x00 , 0x00, 0xff, 0x00, 0x00 } ;
static int cxClient, cyClient;
BITMAPINFO bminfo;
PAINTSTRUCT ps ;
switch (message)
{
case WM_SIZE:
cxClient = LOWORD (lParam) ;
cyClient = HIWORD (lParam) ;
return 0 ; case WM_PAINT:
hdc = BeginPaint (hwnd, &ps) ;
bminfo.bmiHeader = bmheader;
StretchDIBits(hdc,0,0,cxClient,cyClient,0,0, mheader.biWidth,bmheader.biHeight, bits,&bminfo,DIB_RGB_COLORS,SRCCOPY); EndPaint (hwnd, &ps) ;
return 0 ; case WM_DESTROY:
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, message, wParam, lParam) ;
}