Thread: Weird mouse cursor

Just started to write my little freecell game and came across a weird glitch. Whenever I start the app I get a busy cursor (the hourglass) until I move my mouse outside the window. Any idea what's causing this so I can nerf it?

Code:

#include <windows.h>
#include "card.h"

LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow){
    int deck[MAXCOL][MAXPOS];
    HINSTANCE card_dll;
    MSG msg;
    HWND hwnd;
    WNDCLASSEX wc;
    pfcdtInit    cdtInit;
    pfcdtInit    cdtDraw;
    pfcdtAnimate cdtDrawEx;
    pfcdtTerm    cdtTerm; 

    /*load cards.dll*/
    if((card_dll = LoadLibrary("cards.dll")) == 0){
         MessageBox(NULL, "Unable to load cards.dll", "Error", MB_OK | MB_ICONERROR);
         return -1;
    }

    /*fill in the function pointers with valid addresses*/
    cdtInit   = GetProcAddress(card_dll, "cdtInit");
    cdtDraw   = GetProcAddress(card_dll, "cdtDraw");
    cdtDrawEx = GetProcAddress(card_dll, "cdtAnimate");
    cdtTerm   = (pfcdtTerm)GetProcAddress(card_dll, "cdtTerm");
    
    shuffle(deck, 1337);

    wc.cbSize        = sizeof(WNDCLASSEX);
    wc.style         = CS_DBLCLKS;
    wc.lpfnWndProc   = WndProc;
    wc.cbClsExtra    = 0;
    wc.cbWndExtra    = 0;
    wc.hInstance     = hInstance;
    wc.hIcon         = LoadIcon  (hInstance, IDI_APPLICATION);
    wc.hCursor       = LoadCursor(hInstance, IDC_ARROW);
    wc.hbrBackground = CreateSolidBrush(RGB(0,255,0));
    wc.lpszMenuName  = NULL;
    wc.lpszClassName = "Freecell";
    wc.hIconSm       = NULL;

    if(RegisterClassEx(&wc) == 0){
        MessageBox(NULL, "Failed to register window", "Error", MB_OK | MB_ICONERROR);
        return -1;
    }
    /*if all goes well we have a window on-screen after this*/
    hwnd = CreateWindowEx(WS_EX_CLIENTEDGE, "Freecell", "........Cell", WS_VISIBLE | WS_SYSMENU | WS_CAPTION, CW_USEDEFAULT, CW_USEDEFAULT, 640, 480, NULL, NULL, hInstance, NULL);
    
    if(hwnd == NULL){
        MessageBox(NULL, "Unable to create window", "Error", MB_OK | MB_ICONERROR);
        return -1;
    }
    ShowWindow(hwnd, SW_SHOW);
    /*message loop*/    
    while(GetMessage(&msg, hwnd, 0, 0) > 0){
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    /*clean up time*/
    cdtTerm();
    FreeLibrary(card_dll);
    return msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam){
    HDC hdc;
    PAINTSTRUCT ps;
        switch(uMsg){

/*                     case WM_CREATE:
                        hdc = BeginPaint(hwnd, &ps);
                        EndPaint(hwnd, &ps);   
                     break;      
*/
                     case WM_DESTROY:
                          PostQuitMessage(0);
                     break;
                     default:
                          return DefWindowProc(hwnd, uMsg, wParam, lParam);
                     break;        
        }
    return 0;
}

hInstance must be NULL for the LoadIcon and LoadCursor calls if you want to retrieve system icons/cursors.

Thanks SMurf, that got it.