Programming Forums > Application Development > C++

uman · Jul 19th, 2006, 2:16 AM

Hi,

When processing a WM_PAINT message, I run this code (rect is a non-static object of the window procedure function.):

(Toggle Plain Text)

//snip
hdc = BeginPaint(hwnd, &ps);
SelectObject(hdc, GetStockObject(BLACK_BRUSH));
GetClientRect(hwnd, &rect);
//snip

Problem is, the same values end up in rect every time, no matter how much the window is resized. It's correct for the first call of WM_PAINT at the beginning of the program, and then it never changes! Any help?

uman · Jul 19th, 2006, 2:56 AM

Found my problem, it was a stupid mistake. That code was in the window procedure of a child window, which is obviously not going to magically change size when the parent window is resized. I've added code in the parent window to change the size of the client window when the parent window is resized, and that fixed the problem.

Jul 19th, 2006, 2:16 AM	#1
uman Expert Programmer Join Date: Dec 2004 Posts: 794 Rep Power: 4	Problem with GetClientRect Hi, When processing a WM_PAINT message, I run this code (rect is a non-static object of the window procedure function.): (Toggle Plain Text) //snip hdc = BeginPaint(hwnd, &ps); SelectObject(hdc, GetStockObject(BLACK_BRUSH)); GetClientRect(hwnd, &rect); //snip //snip hdc = BeginPaint(hwnd, &ps); SelectObject(hdc, GetStockObject(BLACK_BRUSH)); GetClientRect(hwnd, &rect); //snip Problem is, the same values end up in rect every time, no matter how much the window is resized. It's correct for the first call of WM_PAINT at the beginning of the program, and then it never changes! Any help? __________________ Few people deserve to be compared to (Rush) Limbaugh, most of them were convicted at the Nuremburg trials. --WilliamSChips on Slashdot Last edited by uman; Jul 19th, 2006 at 2:33 AM.

Jul 19th, 2006, 2:56 AM	#2
uman Expert Programmer Join Date: Dec 2004 Posts: 794 Rep Power: 4	Found my problem, it was a stupid mistake. That code was in the window procedure of a child window, which is obviously not going to magically change size when the parent window is resized. I've added code in the parent window to change the size of the client window when the parent window is resized, and that fixed the problem. __________________ Few people deserve to be compared to (Rush) Limbaugh, most of them were convicted at the Nuremburg trials. --WilliamSChips on Slashdot

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Programming Forums > Application Development > C++

Problem with GetClientRect