I tried it this way:
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#define WIN32_LEAN_AND_MEAN /* speed up compilations */
#include <windows.h>
#include <windowsx.h>
#include <commctrl.h>
#include <tchar.h>
#define IDR_MNU_MAIN 2001
#define ID_STATUSBAR 7001
#define IDR_ICO_MAIN 8001
static HWND hwndStatus, hwndImg;
static int WidthsStatus[2];
static HINSTANCE hi;
void Main_OnCommand(HWND hwnd, int id, HWND hwndCtl, UINT codeNotify) {}
void Main_OnDestroy(HWND hwnd) { PostQuitMessage(0);}
BOOL Main_OnCreate(HWND hwnd, LPCREATESTRUCT lpCreateStruct)
{
hwndStatus = CreateWindowEx(
0L, // extended style
STATUSCLASSNAME, // status bar
"", // title
WS_CHILD | WS_BORDER |
WS_VISIBLE | SBS_SIZEGRIP, // styles
0,0,0,0, // x,y,width,height
hwnd, // parent
(HMENU)ID_STATUSBAR, // id
hi, // instance
NULL); // window data
if (!hwndStatus) MessageBox (NULL, "Status Bar not created!", NULL, MB_OK );
hwndImg = CreateWindowEx(0L,
_T("MyImgClass"),
(LPCTSTR) NULL,
WS_CHILDWINDOW | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL,
0,0,0,0,
hwnd,
NULL,
hi,
NULL);
if (!hwndImg) MessageBox (NULL, "Image Window not created!", NULL, MB_OK );
ShowWindow(hwndImg, SW_SHOW);
SendMessage (hwndStatus, SB_SETPARTS, 2, (LPARAM)WidthsStatus);
SendMessage (hwndStatus, SB_SETTEXT, 0, (LPARAM)"Mouse:");
SendMessage (hwndStatus, SB_SETTEXT, 1 | SBT_POPOUT, (LPARAM)"Coords:");
return 1;
}
void Main_OnSize(HWND hwnd, UINT state, int cx, int cy)
{
MoveWindow (hwndImg, 0, 0, cx, cy - 10, TRUE);
MoveWindow (hwndStatus, 0, cy - 10, cx, cy, TRUE);
WidthsStatus[0] = cx / 4;
WidthsStatus[1] = -1;
SendMessage (hwndStatus, SB_SETPARTS, 2, (LPARAM)WidthsStatus);
}
LRESULT CALLBACK MainWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg)
{
HANDLE_MSG(hwnd, WM_COMMAND, Main_OnCommand);
HANDLE_MSG(hwnd, WM_DESTROY, Main_OnDestroy);
HANDLE_MSG(hwnd, WM_CREATE, Main_OnCreate);
HANDLE_MSG(hwnd, WM_SIZE, Main_OnSize);
default: return DefWindowProc(hwnd, msg, wParam, lParam);
}
}
void Img_OnPaint(HWND hwnd)
{
PAINTSTRUCT ps;
RECT rc;
BeginPaint(hwnd, &ps);
GetClientRect(hwnd, &rc);
EndPaint(hwnd, &ps);
}
void Img_OnHScroll(HWND hwnd, HWND hwndCtl, UINT code, int pos) {}
void Img_OnVScroll(HWND hwnd, HWND hwndCtl, UINT code, int pos) {}
LRESULT CALLBACK ImgWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
switch (msg)
{
HANDLE_MSG(hwnd, WM_PAINT, Img_OnPaint);
HANDLE_MSG(hwnd, WM_VSCROLL, Img_OnVScroll);
HANDLE_MSG(hwnd, WM_HSCROLL, Img_OnHScroll);
default: return DefWindowProc(hwndImg, msg, wParam, lParam);
}
}
int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmdLine, int nCmdShow)
{
INITCOMMONCONTROLSEX icc;
WNDCLASSEX wc;
HWND hwnd;
MSG msg;
hi=hInstance;
icc.dwSize = sizeof(icc);
icc.dwICC = ICC_WIN95_CLASSES;
InitCommonControlsEx(&icc);
wc.cbSize = sizeof(WNDCLASSEX);
wc.lpszClassName = _T("MyClass");
wc.lpfnWndProc = MainWndProc;
wc.style = CS_VREDRAW | CS_HREDRAW;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDR_ICO_MAIN));
wc.hIconSm = (HICON)LoadImage(GetModuleHandle(NULL), MAKEINTRESOURCE(IDR_ICO_MAIN),
IMAGE_ICON, 16, 16, 0);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = MAKEINTRESOURCE(IDR_MNU_MAIN);
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
if (!RegisterClassEx(&wc)) return 1;
wc.cbSize = sizeof(WNDCLASSEX);
wc.lpszClassName = _T("MyImgClass");
wc.lpfnWndProc = ImgWndProc;
wc.style = CS_VREDRAW | CS_HREDRAW;
wc.hInstance = hi;
wc.hIcon = NULL;
wc.hIconSm = NULL;
wc.hCursor = LoadCursor(NULL, IDC_CROSS);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName = 0;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
if (!RegisterClassEx(&wc)) return 2;
hwnd = CreateWindowEx(0L,
_T("MyClass"),
_T("digiMouse"),
WS_OVERLAPPEDWINDOW,
0,
0,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
NULL,
hInstance,
NULL
);
if (!hwnd) return 1;
ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
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But my child window is not createt. What I am doing wrong?
Nancy
