NtGdiSetDIBitsToDeviceInternal.c File Reference

#include "../win32nt.h"

Include dependency graph for NtGdiSetDIBitsToDeviceInternal.c:

Go to the source code of this file.

Functions
void	ReadBits (HDC hDC, PDWORD OutBits)
	START_TEST (NtGdiSetDIBitsToDeviceInternal)

Function Documentation

ReadBits()

void ReadBits	(	HDC	hDC,
		PDWORD	OutBits
	)

Definition at line 11 of file NtGdiSetDIBitsToDeviceInternal.c.

{
    int x,y;
 
    for (y = 0; y < 8; y++)
    {
        DWORD Row = 0;
        for (x = 0; x < 8; x++)
            Row |= (0x80 & GetPixel(hDC, 2 + x, 3 + y)) >> x;
        OutBits[y] = Row;
    }
}

Referenced by START_TEST().

START_TEST()

START_TEST

(

NtGdiSetDIBitsToDeviceInternal

)

Definition at line 25 of file NtGdiSetDIBitsToDeviceInternal.c.

{
    static const DWORD InBits[8] = { 0x81, 0x7E, 0x5A, 0x7E, 0x7E, 0x42, 0x7E, 0x81 };
    DWORD OutBits[8];
    XFORM xform;
 
    HWND hWnd = CreateWindowW(L"Static", NULL, WS_VISIBLE,
                              100, 100, 200, 200,
                              NULL, NULL, NULL, NULL);
    /* This DC has an nonzero origin */
    HDC hDC = GetDC(hWnd);
    struct
    {
        BITMAPINFOHEADER bmiHeader;
        RGBQUAD bmiColors[2];
    } bmi;
    int x, y;
 
    bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
    bmi.bmiHeader.biWidth = 8;
    bmi.bmiHeader.biHeight = -8;
    bmi.bmiHeader.biPlanes = 1;
    bmi.bmiHeader.biBitCount = 1;
    bmi.bmiHeader.biCompression = 0;
    bmi.bmiHeader.biSizeImage = 0;
    bmi.bmiHeader.biXPelsPerMeter = 0;
    bmi.bmiHeader.biYPelsPerMeter = 0;
    bmi.bmiHeader.biClrUsed = 0;
    bmi.bmiHeader.biClrImportant = 0;
    *(DWORD *)&bmi.bmiColors[0] = 0x000000;
    *(DWORD *)&bmi.bmiColors[1] = 0xFFFFFF;
 
    /* The destination coordinates are relative to the DC origin */
    TEST(NtGdiSetDIBitsToDeviceInternal(hDC, 2, 3, 8, 8, 0, 0, 0, 8,
                                        (PVOID)InBits, (BITMAPINFO *)&bmi, DIB_RGB_COLORS,
                                        sizeof(InBits), sizeof(bmi), TRUE, NULL));
 
    /* Now get the data from the screen, and see if it matches */
    ReadBits(hDC, OutBits);
 
    TEST(memcmp(InBits, OutBits, sizeof(InBits)) == 0);
 
    /* Change transformation */
    GetWorldTransform(hDC, &xform);
    xform.eM11 = 2;
    xform.eM22 = 2;
    xform.eDx = 10;
    SetWorldTransform(hDC, &xform);
 
    TEST(NtGdiSetDIBitsToDeviceInternal(hDC, 2, 3, 8, 8, 0, 0, 0, 8,
                                        (PVOID)InBits, (BITMAPINFO *)&bmi, DIB_RGB_COLORS,
                                        sizeof(InBits), sizeof(bmi), TRUE, NULL));
 
    xform.eM11 = 1;
    xform.eM22 = 1;
    xform.eDx = 0;
    SetWorldTransform(hDC, &xform);
 
    /* Now get the data from the screen, and see if it matches */
    for (y = 0; y < 8; y++)
    {
        DWORD Row = 0;
        for (x = 0; x < 8; x++)
            Row |= (0x80 & GetPixel(hDC, 2 + x, 3 + y)) >> x;
        OutBits[y] = Row;
    }
 
    TEST(memcmp(InBits, OutBits, sizeof(InBits)) == 0);
 
 
    ReleaseDC(hWnd, hDC);
    DestroyWindow(hWnd);
 
}