есть ли драйвер при вызове которого сразу делает скриншот экрана

C++ и API
#include

inline int GetFilePointer(HANDLE FileHandle){
return SetFilePointer(FileHandle, 0, 0, FILE_CURRENT);
}

bool SaveBMPFile(char *filename, HBITMAP bitmap, HDC bitmapDC, int width, int height){
bool Success=0;
HDC SurfDC=NULL;
HBITMAP OffscrBmp=NULL;
HDC OffscrDC=NULL;
LPBITMAPINFO lpbi=NULL;
LPVOID lpvBits=NULL;
HANDLE BmpFile=INVALID_HANDLE_VALUE;
BITMAPFILEHEADER bmfh;
if ((OffscrBmp = CreateCompatibleBitmap(bitmapDC, width, height)) == NULL)
return 0;
if ((OffscrDC = CreateCompatibleDC(bitmapDC)) == NULL)
return 0;
HBITMAP OldBmp = (HBITMAP)SelectObject(OffscrDC, OffscrBmp);
BitBlt(OffscrDC, 0, 0, width, height, bitmapDC, 0, 0, SRCCOPY);
if ((lpbi = (LPBITMAPINFO)(new char[sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD)])) == NULL)
return 0;
ZeroMemory(&lpbi->bmiHeader, sizeof(BITMAPINFOHEADER));
lpbi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
SelectObject(OffscrDC, OldBmp);
if (!GetDIBits(OffscrDC, OffscrBmp, 0, height, NULL, lpbi, DIB_RGB_COLORS))
return 0;
if ((lpvBits = new char[lpbi->bmiHeader.biSizeImage]) == NULL)
return 0;
if (!GetDIBits(OffscrDC, OffscrBmp, 0, height, lpvBits, lpbi, DIB_RGB_COLORS))
return 0;
if ((BmpFile = CreateFile(filename,
GENERIC_WRITE,
0, NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL)) == INVALID_HANDLE_VALUE)
return 0;
DWORD Written;
bmfh.bfType = 19778;
bmfh.bfReserved1 = bmfh.bfReserved2 = 0;
if (!WriteFile(BmpFile, &bmfh, sizeof(bmfh), &Written, NULL))
return 0;
if (Written < sizeof(bmfh))
return 0;
if (!WriteFile(BmpFile, &lpbi->bmiHeader, sizeof(BITMAPINFOHEADER), &Written, NULL))
return 0;
if (Written < sizeof(BITMAPINFOHEADER))
return 0;
int PalEntries;
if (lpbi->bmiHeader.biCompression == BI_BITFIELDS)
PalEntries = 3;
else PalEntries = (lpbi->bmiHeader.biBitCount <= 8) ?
(int)(1 << lpbi->bmiHeader.biBitCount) : 0;
if(lpbi->bmiHeader.biClrUsed)
PalEntries = lpbi->bmiHeader.biClrUsed;
if(PalEntries){
if (!WriteFile(BmpFile, &lpbi->bmiColors, PalEntries * sizeof(RGBQUAD), &Written, NULL))
return 0;
if (Written < PalEntries * sizeof(RGBQUAD))
return 0;
}
bmfh.bfOffBits = GetFilePointer(BmpFile);
if (!WriteFile(BmpFile, lpvBits, lpbi->bmiHeader.biSizeImage, &Written, NULL))
return 0;
if (Written < lpbi->bmiHeader.biSizeImage)
return 0;
bmfh.bfSize = GetFilePointer(BmpFile);
SetFilePointer(BmpFile, 0, 0, FILE_BEGIN);
if (!WriteFile(BmpFile, &bmfh, sizeof(bmfh), &Written, NULL))
return 0;
if (Written < sizeof(bmfh))
return 0;
return 1;
}
bool ScreenCapture(int x, int y, int width, int height, char *filename){
HDC hDc = CreateCompatibleDC(0);
HBITMAP hBmp = CreateCompatibleBitmap(GetDC(0), width, height);
SelectObject(hDc, hBmp);
BitBlt(hDc, 0, 0, width, height, GetDC(0), x, y, SRCCOPY);
bool ret = SaveBMPFile(filename, hBmp, hDc, width, height);
DeleteObject(hBmp);
return ret;
}

int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpszArgument,
int nCmdShow)
{
//ScreenCapture(0, 0, 100, 100, "picture.bmp");
ScreenCapture(0, 0, GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN), "picture.bmp");

return 0;
}
Сохраняет снимок экрана

есть, только драйвер там не нужен

Есть кнопка Prt Scr