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我正在學習WinAPI並嘗試編寫一個Tic Tac Toe遊戲。我使用的按鈕將顯示X，O或空圖像。按鈕存儲在一個動態數組（HWND）。爲什麼所有這些按鈕都有相同的ID？HWND動態數組中的相同ID
if(GetDlgCtrlID(hBtns[0][0]) == GetDlgCtrlID(hBtns[0][1]))
MessageBox(hWndDlg,_T("TheSame"),_T(""),NULL);
MessageBox出現！，爲什麼。請幫忙。
//KA_SHAG
//Miwa_Mikitin
//XXXOOO
#include<windows.h>
#include<tchar.h>
#include"resource.h"
//Main Proc
BOOL CALLBACK DialogProc(HWND hWndDlg,UINT message,WPARAM wParam,LPARAM lParam);
//EnumChildProc
BOOL CALLBACK DisableEnableButtons(HWND hwnd,LPARAM lParam);
HWND** hBtns;//Global Dynamic Array of Buttons
int size = 150;//Size of Side of field, Button Size = size/nButtons
//BITMAPS
HBITMAP hBmpX,hBmpO,hBmpNone;
/////////
void CreateButtons(HWND hWndDlg,int nBtnsOld,int nBtnsNew);
void LoadBitmaps();
INT WINAPI WinMain(HINSTANCE hIns,HINSTANCE hPrevIns,LPSTR cmdLine,INT nShowCmd)
{
HWND hWndDlg = CreateDialog(hIns,MAKEINTRESOURCE(IDD_DIALOG1),NULL,DialogProc);
MSG msg;
ShowWindow(hWndDlg,1);
while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
BOOL CALLBACK DialogProc(HWND hWndDlg,UINT message,WPARAM wParam,LPARAM lParam)
{
HINSTANCE hIns = GetModuleHandle(0);
static int nBtnsOld = 5;//intitial N of Buttons on a row|col
static int nBtnsNew;//next update N of Buttons on a row|col
static BOOL isPlaying = false;
static BOOL isMyMove = true;
switch(message)
{
case WM_INITDIALOG:
{
LoadBitmaps();
CreateButtons(hWndDlg,nBtnsOld,nBtnsOld);
}
return true;
case WM_COMMAND:
if(HIWORD(wParam) == BN_CLICKED)
{
//Resize the Button field
if(LOWORD(wParam) == IDC_BTNSETSIZE)
{
//Determine wich RadioBtn is Checked
if(IsDlgButtonChecked(hWndDlg,IDC_RADIO33))
nBtnsNew = 3;//set new nBtns
if(IsDlgButtonChecked(hWndDlg,IDC_RADIO44))
nBtnsNew = 4;//set new nBtns
if(IsDlgButtonChecked(hWndDlg,IDC_RADIO55))
nBtnsNew = 5;//set new nBtns
///////////////////////////////////////////
//If no difference than ignore
//else Create new Array of Btns
if(nBtnsOld != nBtnsNew)
{
CreateButtons(hWndDlg,nBtnsOld,nBtnsNew);
nBtnsOld = nBtnsNew;
}
/////////////////////////////////////////
return true;
}
if(LOWORD(wParam) == IDC_BTNBEGIN)
{
//Enum Buttons,CheckBox,RadioBtns
//then Disable or Enable them depending on isPlaying var
//if TRUE - ENABLE
//else Disable
EnumChildWindows(hWndDlg,DisableEnableButtons,isPlaying);
//switch isPlaying)
isPlaying = !isPlaying;
//switch begin Button Text
if(isPlaying)
SetWindowText(GetDlgItem(hWndDlg,IDC_BTNBEGIN),_T("Закінчити гру"));
else
SetWindowText(GetDlgItem(hWndDlg,IDC_BTNBEGIN),_T("Почати гру"));
/////////////////////////////////////////////////////////////////////
return true;
}
//When Playing
if(isPlaying)
{
//Determine HWND of Pressed Btn
HWND pressedBtn = GetDlgItem(hWndDlg,LOWORD(wParam));
HBITMAP propBmp;
if(isMyMove)
propBmp = hBmpX;
else
propBmp = hBmpO;
//Change BMP
SendMessage(pressedBtn,
BM_SETIMAGE,IMAGE_BITMAP,
(LPARAM)propBmp);
//WHY???
if(GetDlgCtrlID(hBtns[0][0]) == GetDlgCtrlID(hBtns[0][1]))
MessageBox(hWndDlg,_T("TheSame"),_T(""),NULL);
return true;
}
}
return true;
case WM_CLOSE:
DestroyWindow(hWndDlg);
PostQuitMessage(0);
return TRUE;
}
return FALSE;
}
void CreateButtons(HWND hWndDlg,int nBtnsOld,int nBtnsNew)
{
HINSTANCE hIns = GetModuleHandle(0);//main instance
//Destroy Buttons
if(hBtns)
{
for(int i=0;i<nBtnsOld;i++)
for(int j=0;j<nBtnsOld;j++)
DestroyWindow(hBtns[i][j]);
////////////////////////////////
//Free memory
for(int n=0;n<nBtnsOld;n++)
delete[]hBtns[n];
delete[]hBtns;
}
/////////////////////////////////
//Allocate new memory
hBtns = new HWND*[nBtnsNew];
for(int n=0;n<nBtnsNew;n++)
hBtns[n] = new HWND[nBtnsNew];
////////////////////////////////
int x =0;//offset x
int y =0;//offset y
//tchar[] for diff name s of btns
//Create Buttons & assign to hBtns Array
for(int i=0;i<nBtnsNew;i++)
{
for(int j=0;j<nBtnsNew;j++)
{
hBtns[i][j] = CreateWindowEx(
NULL,_T("Button"),
NULL,
WS_CHILD | WS_VISIBLE | BS_BITMAP | BS_NOTIFY ,
x,y,size/nBtnsNew,size/nBtnsNew,
hWndDlg,NULL,
hIns,NULL);
//Set Default Image On Btns
SendMessage(hBtns[i][j],BM_SETIMAGE,IMAGE_BITMAP,(LPARAM)hBmpNone);
x+=size/nBtnsNew;
}
y+=size/nBtnsNew;
x=0;
}
}
BOOL CALLBACK DisableEnableButtons(HWND hwnd,LPARAM lParam)
{
//Lparam is a BOOL if true Button will be Enabled
//else Buttons will be Disabled
if(GetDlgCtrlID(hwnd) == IDC_RADIO33 ||
GetDlgCtrlID(hwnd) == IDC_RADIO44 ||
GetDlgCtrlID(hwnd) == IDC_RADIO55 ||
GetDlgCtrlID(hwnd) == IDC_CHECKMOVE ||
GetDlgCtrlID(hwnd) == IDC_BTNSETSIZE)
EnableWindow(hwnd,lParam);//<---lParam is BOOL
return TRUE;
}
//BOOL CALLBACK DrawBmpOnBtn(HWND hwnd,LPARAM lParam)
//{
//
// SendMessage(hwnd,BM_SETIMAGE,
// return TRUE;
//}
void LoadBitmaps()
{
HINSTANCE hIns = GetModuleHandle(0);//main instance
hBmpX = LoadBitmap(hIns,MAKEINTRESOURCE(IDB_BMP_X));
hBmpO = LoadBitmap(hIns,MAKEINTRESOURCE(IDB_BMP_O));
hBmpNone = LoadBitmap(hIns,MAKEINTRESOURCE(IDB_BMP_NONE));
}
項目（VS2008）是在這裏：http://www.filehosting.org/file/details/372626/XXXOOO.rar
P.S.when執行程序 - 下部按鈕允許在一個藍色的按鈕來繪製，上按鈕設置藍色按鈕的數量，但檢查一些radioBtn。
只是因爲你從來沒有設置ID。您在創建按鈕的CreateWindowEx（）調用中爲hMenu參數傳遞NULL。 –
我不得不不同意這個問題的結束。我相信這不是第一次也不是最後一次有人沒有注意到HMENU參數有第二個隱藏目的。 –
我同意@MarkRansom，我沒有看到任何理由將此問題視爲「過於本地化」。 – Cyclonecode