#include <windows.h>
#include "resource.h"LRESULT CALLBACK DialogProc(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
void DisplayModelDialog(HWND hParent);int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) {WNDCLASS wndclass;wndclass.style = CS_HREDRAW | CS_VREDRAW;wndclass.cbClsExtra = 0;wndclass.cbWndExtra = 0;wndclass.hInstance = hInstance;wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);wndclass.lpfnWndProc = DialogProc;wndclass.lpszMenuName = NULL;wndclass.lpszClassName = TEXT("Dialog");RegisterClass(&wndclass);wndclass.lpfnWndProc = WndProc;wndclass.lpszMenuName = TEXT("Menu");wndclass.lpszClassName = TEXT("Parent");RegisterClass(&wndclass);HWND hwnd = CreateWindow(TEXT("Parent"), TEXT("Parent"),WS_OVERLAPPEDWINDOW,CW_USEDEFAULT, CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL, NULL, hInstance, NULL);ShowWindow(hwnd, iCmdShow);UpdateWindow(hwnd);MSG msg;while(GetMessage(&msg, NULL, 0, 0)) {TranslateMessage(&msg);DispatchMessage(&msg);}return msg.wParam;
}LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {switch (message) {case WM_COMMAND:if (LOWORD(wParam) == ID_FILE_DIALOG) {DisplayModelDialog(hwnd);}return 0;case WM_DESTROY:PostQuitMessage(0);return 0;}return DefWindowProc(hwnd, message, wParam, lParam);
}

void DisplayModelDialog(HWND hParent) {EnableWindow(hParent, FALSE);HWND hDlg = CreateWindow(TEXT("Dialog"),TEXT("Dialog"),WS_OVERLAPPEDWINDOW | WS_VISIBLE,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,hParent,NULL,(HINSTANCE)GetWindowLong(hParent, GWL_HINSTANCE),NULL);ShowWindow(hDlg, SW_SHOW);UpdateWindow(hDlg);MSG msg;while (GetMessage(&msg, NULL, 0, 0)) {TranslateMessage(&msg);DispatchMessage(&msg);}EnableWindow(hParent, TRUE);SetForegroundWindow(hParent);
}LRESULT CALLBACK DialogProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {switch (message) {case WM_DESTROY:PostQuitMessage(0);return 0;}return DefWindowProc(hwnd, message, wParam, lParam);
}