Qt Linux/XP difference - making window unresizable by user

Question

in my class that inherits QMainWindow, I have a resize method that resizes the window and then makes it unresizable to user input:

this->setMaximumSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX);
this->resize(this->width(), this->height() + newSize);
this->setFixedSize(this->size());

It works perfectly on Linux, but on Windows it leaves the window resizable to user input. I'm not sure how that's possible, since it's identical code and the last call IS setFixedSize, which should disable resizing.

score 3 · Accepted Answer · edited May 23 '17 at 12:15

3

There are several questions about related problems on Stackoverflow already:

The solution might be to use the Qt::MSWindowsFixedSizeDialogHint QWindowFlag, or to set the parent layout (the main widget layout) to non-resizable, as suggested in this answer:

window->layout()->setSizeConstraint( QLayout::SetFixedSize );

edited May 23 '17 at 12:15

Community

1
1

answered Nov 03 '15 at 15:47

rubenvb

74,642
33
187
332

Apparently using `setSizeConstraint` has no effect either – ulak blade Nov 03 '15 at 17:13
yeah, I tried everything on those questions, no effect whatsoever. I can still drag the window size vertically on Windows, but not on Linux. – ulak blade Nov 05 '15 at 11:21

Qt Linux/XP difference - making window unresizable by user

1 Answers1