memory problems

[bubak]

I have a big problem, my program works fine, but when I do one actioin e.g. 100 times, after RedrawWindow() all fonts, color,etc. get crazy, all the memory is away,... horrible things. So here are a few questions, because I don't know, what to do.
In a procedure, if I want to free the memory I do:

LPTSTR s=new char[100];
delete [] s;

CPen pen1;
pen1.CreatePen(...);
pen1.DeleteObject();

CRect aaa;
GetWindowRect(&aaa);
...is automatically destroyed on the end of the function (I hope)

CDC *dc=GetDC();
...it's destroyed automatically

Is there an error in this?
pls help
bubak

 

[bubak]

sorry.
problem is/was here: I use dc.selectObject(pen1), but I never do sth like pen0=dc.selectObject(pen1);
......
dc.selectObejct(pen0);
But anayway, whay does it not function automatically? ;-)

bubak

 

[Cagliostro]

I think CDC* is problem because pointers are not destroyed automatically as memory allocation but only as variables. John Fill

ivfmd@mail.md

 

[bubak]

U mena, that when I have
int aa;
void aaa(void){
int *a;
CDC *b;
char c;

a=&aa;
b=::GetDC();
c='a';
}
taht this 3 variables r not deleted when '}' is reached?

 

[bubak]

and one more thing: when I do old_pen=dc->selectObject(pen1); and I want also dc->SelectObject(pen2), do I have just to do it this way:
old_pen=dc->SelectObject(pen1);
dc->SelectObject(pen2); <---------------+
dc->selectObejct(old_pen); |
or do I have to put the returned |
CPen* also somewhere (from here ---------+ )
???