How can we increase or decrease the size of dialog box so that it can also change the size of all the button and menu also in MFC?

Aman Anand 1

void CMFCApplication6Dlg::OnFontIncreasefont()
{

/*LPCTSTR text = _T("Hello World");  
SetDlgItemTextW(IDD_MFCAPPLICATION6_DIALOG,text);*/  

Correct rect;  
GetClientRect(&rect);

x = rect.Height();
int y = rect.Width();
cout << x << endl;
cout << y << endl;
SetWindowPos(NULL, 200, 300, x + 150, y + 10, SWP_NOMOVE);
CFont font;
font.CreateFont(
fon + 5, // nHeight
0, // nWidth
0, // nEscapement
0, // nOrientation
FW_NORMAL, // nWeight
FALSE, // bItalic
FALSE, // bUnderline
0, // cStrikeOut
ANSI_CHARSET, // nCharSet
OUT_DEFAULT_PRECIS, // nOutPrecision
CLIP_DEFAULT_PRECIS, // nClipPrecision
DEFAULT_QUALITY, // nQuality
DEFAULT_PITCH | FF_SWISS, // nPitchAndFamily
_T("Arial")); // lpszFacename

fon = fon + 5;  
GetDlgItem(IDC_STATIC1)->SetFont(&font);  
GetDlgItem(IDC_STATIC2)->SetFont(&font);  
GetDlgItem(IDOK)->SetFont(&font);  
GetDlgItem(IDC_EDIT2)->SetFont(&font);

}

4 answers

Castorix31 82,836 Reputation points

2022-12-27T08:56:59.143+00:00

You can adapt & improve the old MS KB Q112639 (C/Win32, 1992)
I re-compiled it in VS 2020 : SclblDlg.zip
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1 person found this answer helpful.
Aman Anand 1 Reputation point

2022-12-27T09:08:47.063+00:00

I am unable to download that zip file.

Castorix31 82,836 Reputation points

2022-12-27T09:23:13.17+00:00

There was a "+" at beginning of the link, that I just removed...

Aman Anand 1 Reputation point

2022-12-27T09:25:12.34+00:00

Is there any option so that i can increase or decrease the size with the help of button.

Aman Anand 1 Reputation point

2022-12-27T09:28:58.713+00:00

@Castorix31 that zip file is not working ,even not even able to run the code.

Castorix31 82,836 Reputation points

2022-12-27T09:31:20.173+00:00

Just resize the DialogBox with SetWindowPos or MoveWindow (with a CSpinButtonCtrl for example)

Castorix31 82,836 Reputation points

2022-12-27T09:39:13.147+00:00

I have tested with MS Edge and the download works and the zip is ok :

Aman Anand 1 Reputation point

2022-12-27T10:07:27.653+00:00

@Castorix31 I have already done that , but it's not working . the button is very much static , not even moving anywhere.

Aman Anand 1 Reputation point

2022-12-27T10:24:01.497+00:00

void CMFCApplication6Dlg::OnFontDecreasefont()
{
// TODO: Add your command handler code here
//CFont font;
GetClientRect(&rect);
int x = rect.right-rect.left;
int y = rect.bottom-rect.top;

cout << x << endl; cout << y << endl; int newSizex = x; int newSizey = y; font.DeleteObject(); font.CreateFont( fon - 2, // nHeight 0, // nWidth 0, // nEscapement 0, // nOrientation FW_NORMAL, // nWeight FALSE, // bItalic FALSE, // bUnderline 0, // cStrikeOut ANSI_CHARSET, // nCharSet OUT_DEFAULT_PRECIS, // nOutPrecision CLIP_DEFAULT_PRECIS, // nClipPrecision DEFAULT_QUALITY, // nQuality DEFAULT_PITCH | FF_SWISS, // nPitchAndFamily _T("Arial")); // lpszFacename for (CWnd* wnd = GetWindow(GW_CHILD); wnd != NULL; wnd = wnd->GetWindow(GW_HWNDNEXT)) { wnd->SetFont(&font); } fon = fon - 2; SetWindowPos(NULL, x, y, x - 30, y - 20, SWP_NOMOVE); //delete font;

}

Castorix31 82,836 Reputation points

2022-12-27T11:05:49.763+00:00

I quickly added a UpDown control in MS sample to do a test :

Minxin Yu 10,791 Reputation points Microsoft Vendor

2022-12-28T03:43:55.94+00:00

I am able to run the sample snippet Castorix31 provided .(Debug x86 is ok. x64 will crash when clicking File ->dialog )

Aman Anand 1 Reputation point

2022-12-28T05:12:33.58+00:00

I ma using Visual Studio 2017 and there I am getting error like MSB8020.

Minxin Yu 10,791 Reputation points Microsoft Vendor

2022-12-28T05:47:35.463+00:00

From the doc: MSBuild error MSB8020 , you need to set the specified Platform Toolset in Visual Studio 2017 project setting.

Aman Anand 1 Reputation point

2022-12-28T06:04:25.18+00:00

@Minxin Yu My issues is still not getting resolve , is there any way I can contact you directly?

Minxin Yu 10,791 Reputation points Microsoft Vendor

2022-12-28T06:14:01.027+00:00

Sorry I only reply on Q&A forum. I successfully opened the project in Visual Studio 2017 with toolset v141.
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Minxin Yu 10,791 Microsoft Vendor

Hi, @Aman Anand
Welcome to Microsoft Q&A!

You can use WM_SIZE message and CWnd::movewindow.

void CMFCApplication6Dlg::OnSize(UINT nType, int cx, int cy)  
{  
	CDialogEx::OnSize(nType, cx, cy);  
	CWnd* pwnd = GetDlgItem(IDC_XXX);  
	if (pwnd->GetSafeHwnd())  
	{  
		pwnd->MoveWindow(...);  
	}  
	// TODO: Add your message handler code here  
}

Best regards,

Minxin Yu

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Aman Anand 1 Reputation point

2022-12-27T09:34:07.56+00:00

@Minxin Yu thank you for your response but the issues i am getting is after increasing the button size , i am unable to arrange that button according to the increase or decrease of dialog size ,and because of this its getting overlap on one another.

Aman Anand 1

Here is the code i have used .

void CMFCApplication6Dlg::OnFontDecreasefont()
{
// TODO: Add your command handler code here
//CFont font;
GetClientRect(&rect);
int x = rect.right-rect.left;
int y = rect.bottom-rect.top;

cout << x << endl;  
cout << y << endl;  

int newSizex = x;  
int newSizey = y;  
  
font.DeleteObject();  
font.CreateFont(  
	fon - 2,                   // nHeight  
	0,                         // nWidth  
	0,                         // nEscapement  
	0,                         // nOrientation  
	FW_NORMAL,                 // nWeight  
	FALSE,                     // bItalic  
	FALSE,                     // bUnderline  
	0,                         // cStrikeOut  
	ANSI_CHARSET,              // nCharSet  
	OUT_DEFAULT_PRECIS,        // nOutPrecision  
	CLIP_DEFAULT_PRECIS,       // nClipPrecision  
	DEFAULT_QUALITY,           // nQuality  
	DEFAULT_PITCH | FF_SWISS,  // nPitchAndFamily  
	_T("Arial"));              // lpszFacename  
	  

	for (CWnd* wnd = GetWindow(GW_CHILD); wnd != NULL; wnd = wnd->GetWindow(GW_HWNDNEXT))  
	{  
		wnd->SetFont(&font);  
	}  
	fon = fon - 2;  
	SetWindowPos(NULL, x, y, x - 30, y - 20, SWP_NOMOVE);  
	//delete font;

}

Minxin Yu 10,791 Reputation points Microsoft Vendor

2022-12-28T09:45:19.22+00:00
Below is a simple snippet to modified controls' size. You need to add additional adjustments for special controls.

variables in MFC dlg.h

CRect m_rect;
std::vector<CRect> storeRect;

OnInitDialog() { // TODO: Add extra initialization here for (CWnd* pwnd = GetWindow(GW_CHILD); pwnd != NULL; pwnd = pwnd->GetWindow(GW_HWNDNEXT)) { CRect rect; ::GetWindowRect(pwnd->GetSafeHwnd(), &rect); ScreenToClient(&rect); storeRect.push_back(rect); } ::GetClientRect(m_hWnd, &m_rect); ScreenToClient(&m_rect); } void CMFCApplication6Dlg::OnSize(UINT nType, int cx, int cy) { CDialogEx::OnSize(nType, cx, cy); if (m_rect.Width() != 0) { int count = 0; for (CWnd *pwnd = GetWindow(GW_CHILD); pwnd != NULL; pwnd = pwnd->GetWindow(GW_HWNDNEXT)) { CRect temp; temp.CopyRect(&storeRect[count]); float width = (float)cx / m_rect.Width(); float hight = (float)cy / m_rect.Height(); temp.left *= width; temp.right *= width; temp.top *= hight; temp.bottom *= hight; if (pwnd->GetSafeHwnd()) { pwnd->MoveWindow(temp); } count++; } } }
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Minxin Yu 10,791 Reputation points Microsoft Vendor

2023-01-10T07:16:00.927+00:00

Record the coordinates relative to the client area to change the control size.

Aman Anand 1 Reputation point

2023-01-10T07:25:17.2+00:00

I have done the same thing but coordinate of button and dialog is not aliening properly. Please help me in that place

Aman Anand 1 Reputation point

2023-01-10T07:37:46.573+00:00

Or else if you can tell me how much you are moving your button as compare to other button, because in my case button or text is getting overlap with each other .

Minxin Yu 10,791 Reputation points Microsoft Vendor

2023-01-10T07:52:24.73+00:00

You can try the simple snippet above in a new MFC dialog app. The algorithm is not optimized (like static text control is not processed).

float width = (float)cx / m_rect.Width(); float hight = (float)cy / m_rect.Height(); temp.left *= width; temp.right *= width; temp.top *= hight; temp.bottom *= hight;
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Aman Anand 1 Reputation point

2023-01-09T07:28:58.183+00:00

if i am trying to use by my code, it's not increasing respective of dialog and button .
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How can we increase or decrease the size of dialog box so that it can also change the size of all the button and menu also in MFC?

4 answers