API Color Problem

[Vlatko]

I am making an app using only API(no MFC).Now ,the problem is that i don't know how to change the backcolor of a window or the text in that window.I tried to use the SetBkColor function but don't know how.I don't know how to use the COLORREF structure.
Any help appreciated.

I also code in only API and i would also like to know how to do this.

[parksie]

COLORREF isn't a structure. It's a typedef alias (a type that is created from another standard type, in this case an unsigned long).
So, you pass the values as:

SetBkColor(..., RGB(255,255,255), ...);

...using the RGB macro. The values are stored as 0x00BBGGRR internally.

[Vlatko]

I tried this but it doesn't work:

HWND db=FindWindow(NULL,"bb");
HDC dbdc = GetDC(db);
SetBkColor(dbdc,RGB(255,0,128));

WHY??

[V(ery) Basic]

Okay, I'm not exactly a C++ expert, but:


ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEX wcex;

wcex.hbrBackground = GetSysColorBrush(COLOR_BTNFACE) ;

//Other wcex stuff



Works fine.

Also:


case WM_PAINT:
HDC hdc;
PAINTSTRUCT ps;
RECT rct;
HBRUSH hBrush;
POINT p;

GetWindowRect(hWnd, &rct);

p.x = rct.top;
p.y = rct.left;
ScreenToClient(hWnd, &p);
rct.top = p.x;
rct.left = p.y;

p.x = rct.bottom;
p.y = rct.right;
ScreenToClient(hWnd, &p);
rct.bottom = p.x;
rct.right = p.y;

hBrush = GetSysColorBrush(COLOR_BTNFACE);
hdc = BeginPaint(hWnd, &ps);
FillRect(hdc, &rct, hBrush);
DeleteObject((HGDIOBJ) hBrush);
ReleaseDC(hWnd, hdc);

break;


Works I think.

I hope.

Oh, well.

Bye!