Maximize and minimize the dialogs

[kaya17]

HI, guys, now my project is on the final stage. but still, there is a problem not solved. that is the maximize and minimize of the dialogs.

i got some buttons and a list in the dialog, once i click the maxi and mini icons on the top right corner, the dialog indeed changed accordingly, however, the buttons and list still remain the same size and position.

what should i do i want them to be enlarged accordingly?
and,
how to make the dialog fully occupies the screen at the when it is initialized?


Thanks very much for any suggestions!

regards,
kaya

 

[teriviret]

I've found that if you want the layout and/or size of dialog controls to change dynamically when your dialog box changes size, you have to do it yourself. Catch the WM_SIZE message, which is sent every time your dialog box changes size, and in there recalculate where you want to move each control and what size you want them to be, based on the new dialog box size.

 

[Cagliostro]

you should use DefferWindowPos when receiving WM_SIZE and move/resize all windows according to positions.

Ion Filipski

 

[kaya17]

so, you are saying that i have to do it manully?

 

[Cagliostro]

yes

Ion Filipski

 

[kaya17]

hi, could any of you give me some examples to illustrate how to use the DeferWindowPos()?


thanks a lot!

kaya

 

[Cagliostro]

LRESULT CALLBACK WndProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
.....
    switch(message)
    {
....
    case WM_SIZE:
       ResizeAllWindows(hWnd);
       break;
 .....
    }
.....
}
void ResizeAllWindows(HWND hWnd)
{
    RECT rc;
    H[COLOR=red]DWP[/color] hdwp;
    GetClientRect(hWnd,&rc);
    hdwp=BeginDeferWindowPos(4);
    if(!hdwp)return;

    DeferWindowPos(hdwp,hwndTree,NULL,0,
        32,rc.right/4, rc.bottom-52,SWP_NOZORDER);
        DeferWindowPos(hdwp,hListWnd,NULL,((rc.right-rc.left)/4)+3,32,
        (((rc.right-rc.left)/4)*3)-3,rc.bottom-52,SWP_NOZORDER);
    DeferWindowPos(hdwp,hStatusWnd,NULL,0,rc.bottom-32,rc.right,rc.bottom,SWP_NOZORDER|SWP_NOMOVE);
     DeferWindowPos(hdwp, hToolWnd, NULL, 0, 0, rc.right-3,rc.bottom, SWP_NOZORDER | SWP_NOMOVE);
    EndDeferWindowPos(hdwp);
    return;
}

Ion Filipski

 

[kaya17]

HI, thanks a lot for your code.

when i tried it out, it said the GetClientRect(hWnd, &rc); doesn't take 2 parameters, is there any header file should i add? i added the #include <windows.h>, but it still persisted.


and what is the hwndTree, hListWnd, hStatusWnd, and hToolWnd?

in my dialog, there are 5 buttons, one list, and a text display, and some combo-boxes. in my case, what should i write to replace the hwndTree, hListWnd...?

looking forward to your reply.


regards,
kaya

 

[Cagliostro]

you may use one or
::GetClientRect(hWnd, &rc);
or
GetClientRect(&rc);
As I see you're using MFC.

hwndTree, hListWnd, hStatusWnd, and hToolWnd are some windows handles from one of my applications. It is just a copy/paste. You will have yours in your application (any or buttons/toolbars/different controls/..... what could be identified by some HWND).

Ion Filipski

 

[kaya17]

Hi, thanks for your reply.
but would you tell me how to get the HWND of thoes controls (like buttons, lists, combo boxes or whatsoever)?


Looking forward to your reply.
thanks.

kaya

 

[Cagliostro]

If you have only ID's of your controls you can use GetDlgItem(ID_YOURCONTROL) or nonMFC equivalent is GetDlgItem(yourDlgHwnd, ID_YOURCONTROL);
Else if you have created controls manually in code, then you should use them by variable names:
CButton* yourButton;
......

HWND hwndOfYourButton = yourButton->GetHandle();

Ion Filipski

 

[kaya17]

i tried the GetDlgItem(IDC_ListControl)
but it said cannot convert parameter 2 from 'class CWnd *' to 'struct HWND_*'
IN THE DeferWindowPos(...) function....

oh...headache....