🚀 go-pugleaf

"Remy Lebeau (TeamB)" <no.spam@no.spam.com> wrote in message 
news:489892df$1@newsgroups.borland.com...


>Do not hold on to any HDC that you do not explicitally create yourself.

Then, yes, CreateCompatibleDC/DeleteDC can be used between messages


> That is the correct way to use it.  Always re-select any previous GDI 
> resources you replace when you are done using them.
>
>> case WM_PAINT:
>>    hdc = GetDC(hwnd);
>
> You should be looking at the wParam value.  If not 0, it contains an HDC 
> that you need to draw to instead.

Sorry, my mistake. The code should be:

case WM_PAINT:
    hdc = BeginPaint(hdc, &ps);
    hBrushOld = SelectObject(hdc, hBrush);
    GetClientRect(&rect);
    Rectangle(hdc, 10, 20, 30, 40);
    SelectObject(hdc, hBrushOld); //1
    EndPaint(hdc, &ps);
break;


>> So, when is it necessary to restore default attributes?
>
> Always.

It's quite weird that a textbook which is considered as "classic" or "best" 
by many people,
can contain so arguable material.

Thanks again...