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GeneralRe: How do I access private variable of an object ? Pin
Richard MacCutchan17-Jun-21 0:35
mveRichard MacCutchan17-Jun-21 0:35 
GeneralRe: How do I access private variable of an object ? Pin
CPallini17-Jun-21 1:32
mveCPallini17-Jun-21 1:32 
GeneralRe: How do I access private variable of an object ? Pin
Member 1496877117-Jun-21 6:36
MemberMember 1496877117-Jun-21 6:36 
GeneralRe: How do I access private variable of an object ? Pin
Richard MacCutchan17-Jun-21 6:40
mveRichard MacCutchan17-Jun-21 6:40 
GeneralRe: How do I access private variable of an object ? Pin
CPallini17-Jun-21 7:43
mveCPallini17-Jun-21 7:43 
AnswerRe: How do I access private variable of an object ? Pin
Magnus Forslund15-Jul-21 2:19
MemberMagnus Forslund15-Jul-21 2:19 
QuestionPass a function with parameter Pin
Member 1496877115-Jun-21 10:35
MemberMember 1496877115-Jun-21 10:35 
AnswerRe: Pass a function with parameter Pin
Greg Utas15-Jun-21 11:38
mvaGreg Utas15-Jun-21 11:38 
This looks suspicious to me:
C++
&MainWindow::Run_DDD_OPTION(testWidget)

It looks like you're trying to create a pointer to whatever Run_DDD_OPTION returns. However, you also say
Run_DDD_OPTION(testWidget); // runs fine
which either means that it returns void or you didn't care what it returned. My guess is the former, which would explain all the error messages. If it returns void, you can't take its address, and there is no lvalue (=a memory address).

EDIT: If you want to pass the function Run_DDD_OPTION as an argument to addAction, just write
C++
addAction(tr("&Device Discovery Dialog(modified Bluetooth scanner)"),
   this,
   MainWindow::Run_DDD_OPTION
   );
You may need the & in front of the function name--I haven't done this in a long time, so I have to look it up. --It looks like it's optional. If it doesn't work without it, try it with it.
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modified 15-Jun-21 17:48pm.

GeneralRe: Pass a function with parameter Pin
Member 1496877115-Jun-21 13:30
MemberMember 1496877115-Jun-21 13:30 
GeneralRe: Pass a function with parameter Pin
Greg Utas15-Jun-21 13:39
mvaGreg Utas15-Jun-21 13:39 
GeneralRe: Pass a function with parameter Pin
Member 1496877115-Jun-21 15:23
MemberMember 1496877115-Jun-21 15:23 
GeneralRe: Pass a function with parameter Pin
Greg Utas16-Jun-21 0:22
mvaGreg Utas16-Jun-21 0:22 
QuestionRegarding Constructor Calling in C++ Pin
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AnswerRe: Regarding Constructor Calling in C++ Pin
David Crow15-Jun-21 3:29
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GeneralRe: Regarding Constructor Calling in C++ Pin
Member 1522917415-Jun-21 3:55
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GeneralRe: Regarding Constructor Calling in C++ Pin
Richard MacCutchan15-Jun-21 5:02
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AnswerRe: Regarding Constructor Calling in C++ Pin
Maximilien15-Jun-21 5:01
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AnswerRe: Regarding Constructor Calling in C++ Pin
CPallini15-Jun-21 23:39
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QuestionAdvice on writing a GUI application that can run on very old Windows operating systems without Service Packs and Frameworks Pin
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AnswerRe: Advice on writing a GUI application that can run on very old Windows operating systems without Service Packs and Frameworks Pin
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AnswerRe: Advice on writing a GUI application that can run on very old Windows operating systems without Service Packs and Frameworks Pin
Richard MacCutchan14-Jun-21 8:51
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AnswerRe: Advice on writing a GUI application that can run on very old Windows operating systems without Service Packs and Frameworks Pin
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AnswerRe: Advice on writing a GUI application that can run on very old Windows operating systems without Service Packs and Frameworks Pin
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QuestionWindows 10 - find last logon time in C++ ?? Pin
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