Re: change control postion during runtime in win32 - C / C++ / MFC Discussion Boards

change control postion during runtime in win32

daydremer8-Jun-05 1:24

8-Jun-05 1:24

I have a problem in changing the position of a checkbox control during runtime.

i created the checkbox control during runtime also.

i have tried using SendMessage

SendMessage(GetDlgItem(hwnd,IDD_PIN_BUTTON + (intPinChkCtr)), WM_MOVE, 0, MAKELPARAM( (WORD)rectDialog.left, (WORD)rectDialog.top++) );

during debug while watching the return of the GetWindowRect() it says that the controls top property has increased but it seems that the control has not moved its position in the dialog.

any suggestions?

thanks!

Re: change control postion during runtime in win32

toxcct8-Jun-05 1:28

toxcct

8-Jun-05 1:28

it is not very proper to combine such operations on the same line, especially when you do not / cannot know in which order it is executed...

in your :

SendMessage(GetDlgItem(hwnd,IDD_PIN_BUTTON + (intPinChkCtr)), WM_MOVE, 0, MAKELPARAM( (WORD)rectDialog.left, (WORD)rectDialog.top++) );

are you sure the rectDialog.top++ is executed before the GetDlgItem() funciton is executed ?

wouldn't it be better to write ++(rectDialog.top), or better extract it before the line, then pass the value ?

cheers,

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: change control postion during runtime in win32

Anonymous8-Jun-05 1:42

Anonymous

8-Jun-05 1:42

thanks for the suggestion.
i tried it but it seems that the incremented top position was not kept.
during debug the top value would change but if i would be going back to the break point
again the previous top value was retained.

GetWindowRect( GetDlgItem(hwnd,IDD_PIN_BUTTON + (intPinChkCtr)), &rectDialog ); //breakpoint here<br />
sizeDialog.cx = rectDialog.right - rectDialog.left;<br />
sizeDialog.cy = rectDialog.bottom - rectDialog.top;<br />
SendMessage(GetDlgItem(hwnd,IDD_PIN_BUTTON + (intPinChkCtr)), WM_MOVE, 0, MAKELPARAM( (WORD)rectDialog.left, (WORD)(++rectDialog.top)) );

it seems like the control was not keeping the changes from the SendMessage()

Re: change control postion during runtime in win32

toxcct8-Jun-05 1:47

toxcct

8-Jun-05 1:47

and what about SetWindosPos() instead of SendMessage() ?

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: change control postion during runtime in win32

ThatsAlok8-Jun-05 1:35

ThatsAlok

8-Jun-05 1:35

daydremer wrote:
I have a problem in changing the position of a checkbox control during runtime

What about [MoveWindow] and [SetWindowPos] Api! Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: change control postion during runtime in win32

toxcct8-Jun-05 1:41

toxcct

8-Jun-05 1:41

it seem that alok have some trouble...
do you also click with your nose ?
or did you just forget the [Modify] link ? Big Grin | :-D

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: change control postion during runtime in win32

ThatsAlok8-Jun-05 1:53

ThatsAlok

8-Jun-05 1:53

toxcct wrote:
do you also click with your nose ?

No Using Hand these days, After Cedric lost control! Smile | :)

toxcct wrote:
it seem that alok have some trouble...

DAMM 500 error doing this, i think my message is not posted , so i post it again Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: change control postion during runtime in win32

toxcct8-Jun-05 1:57

toxcct

8-Jun-05 1:57

and what about [Delete] link now ? Laugh | :laugh:

(toxcct, looking at his watch : "Oh no, it's time to 3... the school's gonna disconnect the servers for 3 hours && 1/2 ... like every days Cry | :((

how will i write my posts???)

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: change control postion during runtime in win32

ThatsAlok8-Jun-05 2:00

ThatsAlok

8-Jun-05 2:00

toxcct wrote:
and what about [Delete] link now ?

YES OFFICER, IT WILL BE DONE, OVER AND OUT!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Bob Stanneveld8-Jun-05 2:25

Bob Stanneveld

8-Jun-05 2:25

toxcct wrote:
(toxcct, looking at his watch : "Oh no, it's time to 3... the school's gonna disconnect the servers for 3 hours && 1/2 ... like every days how will i write my posts???)

Ah yes, Alok we have an advantage the next hours...

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: OT

ThatsAlok8-Jun-05 2:36

ThatsAlok

8-Jun-05 2:36

Bob Stanneveld wrote:
Ah yes, Alok we have an advantage the next hours...

Nope 3 and 1/2 hr (Oops 1/2 hr already passed Smile | :)

)

Any way Now you are alone as i am logging off tooo, have nice DAY Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: OT

Bob Stanneveld8-Jun-05 2:40

Bob Stanneveld

8-Jun-05 2:40

LOL. I have to wait a few hours before I finish work and go home...

Have a nice day too Cool | :cool:

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: OT

toxcct8-Jun-05 5:09

toxcct

8-Jun-05 5:09

well, have a nice evening Big Grin | :-D

i'm back, but not for a long time Wink | ;)

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: OT

Bob Stanneveld8-Jun-05 5:13

Bob Stanneveld

8-Jun-05 5:13

Well, I'm finished with my work Roll eyes | :rolleyes:

so I head home now.

See you tomorrow Wink | ;)

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: change control postion during runtime in win32

daydremer8-Jun-05 3:13

daydremer

8-Jun-05 3:13

MoveWindow worked for me although it took me a while to figure out how the command works.
thanks a lot!

unsigned chars to unsigned short

richiemac8-Jun-05 1:12

richiemac

8-Jun-05 1:12

Hi all,

I got two unsigned chars that I need to convert into a unsigned short whereby the two chars act as the upper and lower bytes of the short. How do I go about this. It seems in my head to be a simple matter but I just can't figure it out.

Thank you in advance
Rich

Re: unsigned chars to unsigned short

toxcct8-Jun-05 1:17

toxcct

8-Jun-05 1:17

<font color=blue>unsigned char</font> ucMSB = 0x6F,
              ucLSB = 0xA4;
 
<font color=green>// We want (usVal == 0x6FA4)...</font>
<font color=blue>unsigned short</font> usVal = (((<font color=blue>unsigned short</font>)ucMSB) << 8) | ((<font color=blue>unsigned short</font>)ucLSB);

easy isn't it ?! Big Grin | :-D

pssst: it seems that you have some troubles with bytes manipulation ; as it is not the first time you ask such question... what are you trying to do with all these ?

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: unsigned chars to unsigned short

richiemac8-Jun-05 2:15

richiemac

8-Jun-05 2:15

Thanks for the help guys.

What am I doing? I'm converting user input ( from gui ) into the smallest possible form ( hence the splitting of data ), transmit it to another source via serial comms which then sends a message back. The message then has to put back into a readable form so it can be displyed in the gui. I've got the Tx side of things sorted now but I'm just tying up the Rx data.

I knew it was simple but I just couldn't figure it out. Time to blow brains out I think. Roll eyes | :rolleyes:

Re: unsigned chars to unsigned short

Bob Stanneveld8-Jun-05 1:24

Bob Stanneveld

8-Jun-05 1:24

short nYourShort = cYourChar1;
(&nYourShort) + 1 = cYourChar2;

Or:

short nYourShort = ((short) cYourChar1) + ((short) cYourChar2) * 255;

why multiply cYourChar2 with 255 you ask. Well its the same as shifting all the bits 8 places to the left (towards the MSB). The equivilant would be: ((short)cYourChar2) << 8.

There are many solutions to this problem, these are just a few.

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: unsigned chars to unsigned short

toxcct8-Jun-05 1:31

toxcct

8-Jun-05 1:31

Bob Stanneveld wrote:
with 255 you ask. Well its the same as shifting all the bits 8 places

isn't it 256 instead ???

however, it is not a so good habit to code bits and bytes manipulation..

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: unsigned chars to unsigned short

Bob Stanneveld8-Jun-05 1:35

Bob Stanneveld

8-Jun-05 1:35

toxcct wrote:
isn't it 256 instead ???

D'Oh! | :doh:

I'm wrong 1 bit once again... And it was you who corrected me the first time too, if I remember correctly.

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: unsigned chars to unsigned short

toxcct8-Jun-05 1:38

toxcct

8-Jun-05 1:38

Bob Stanneveld wrote:
I'm wrong 1 bit once again...

remember that 8 bits shifting equal to 2^8 (2 for base-2, 8 for 8 bits), or better equals to 0x100...

TOXCCT >>> GEII power
[toxcct][VisualCalc]

Re: unsigned chars to unsigned short

Bob Stanneveld8-Jun-05 1:41

Bob Stanneveld

8-Jun-05 1:41

I thought that odd value was a little bit strange! Anyway, thanks for notifing me. Big Grin | :-D

Behind every great black man...
... is the police. - Conspiracy brother

Blog[^]

Re: unsigned chars to unsigned short

ThatsAlok8-Jun-05 1:59

ThatsAlok

8-Jun-05 1:59

Can we use mbtowc instead

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: unsigned chars to unsigned short

richiemac8-Jun-05 2:16

richiemac

8-Jun-05 2:16

Thanks all.

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