Radio Button not Checking

Posted on 2004-04-09
Medium Priority
Last Modified: 2013-11-20
Hi, I am a newbie C programmer and am pulling my hair out on this simple problem.

I have 2 radio buttons "IDC_TargetMD" & "IDC_TargetSC" in group "IDC_STATIC"

Both buttons have the "Auto" property checked and "IDC_TargetSC" has the "Group" Property checked.

When "TargetChoice" equals 2, the mesage box pops and the "IDC_TargetSC"is selected.
When "TargetChoice" does not equal 2, the mesage box pops but no check boxes are selected!!!!!!!

if (TargetChoice==2)
      MessageBox(plugin.hwndParent,"SC", "SC",MB_OK);
      CheckRadioButton(hwndDlg, IDC_TargetMD, IDC_TargetSC, IDC_TargetSC);
      MessageBox(plugin.hwndParent,"MD", "MD",MB_OK);
      CheckRadioButton(hwndDlg, IDC_TargetMD, IDC_TargetSC, IDC_TargetMD);

HEELLLLPPPP ... going bald :D
(Working in Visual Sudio C++ 6.0)
Question by:Peter-Pan
  • 2
LVL 14

Assisted Solution

wayside earned 75 total points
ID: 10792018
Check the error code from CheckRadioButton:

BOOL worked = CheckRadioButton(hwndDlg, IDC_TargetMD, IDC_TargetSC, IDC_TargetMD);;

if (worked == FALSE) {
  DWORD errcode = GetLastError();

Are you handling the events generated when you check a button? I believe when the button is checked programatically the button fires another event that tells you it's been checked. Perhaps in handling this event you are doing something to cause the button to become unchecked. It's hard to say without seeing more code.
LVL 48

Accepted Solution

AlexFM earned 75 total points
ID: 10792103
IDC_STATIC is not a group. Group is number of controls arranged by tab order. First control in group has "Group" checked, all other have "Group" unchecked. Check whether IDC_TargetMD and IDC_TargetSC have consequent tab order number (see Layout - Tab Order menu command).

Author Comment

ID: 10792246
@wayside -> I tried your code and "worked" was TRUE

@AlexFM -> I meant that "IDC_STATIC" was the "Group box" control that they are sitting in.

My Dialog box has 5 elements (TabOrder):
Button - IDOK(1)
Button - IDCANCEL(2)
Group Box - IDC_STATIC(3)
RadioButton - IDC_TargetMD(4)
RadioButton - IDC_TargetSC(5)

Only IDC_TargetMD has "Group" checked.

Author Comment

ID: 10799652
Ok, turns out that there was something stuffed up in my resource.h file. I will just split the points.

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