c - How do I free the standard icons and cursors (those loaded with LoadIcon/Cursor(NULL, IDI/IDC_WHATEVER))? -

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another quick question time: dll handles ui stuff has uninit() function should called before program terminates frees resources (unregisters window classes, deletes private heap, etc.). required call unloading idi_application, idc_arrow, , other system icons , cursors loaded loadicon/cursor(null, idi/idc_whatever)? closest can gather msdn deleteobject() should not called on these icons; there no such function, in case? thanks.

you don't unload system-defined icons or cursors. documentation destroyicon, instance, says (emphasis added):

it necessary call destroyicon icons , cursors created following functions: createiconfromresourceex (if called without lr_shared flag), createiconindirect, , copyicon. do not use function destroy shared icon. shared icon valid long module loaded remains in memory. following functions obtain shared icon.

  • loadicon
  • loadimage (if use lr_shared flag)
  • copyimage (if use lr_copyreturnorg flag , himage parameter shared icon)
  • createiconfromresource
  • createiconfromresourceex (if use lr_shared flag)

the above states icons obtain loadicon() should not destroyed. same said in documentation destroycursor:

destroys cursor , frees memory cursor occupied. do not use function destroy shared cursor.


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