At 04:10 PM 8/25/2001 +0200, you wrote:
>Can I safely do this on a non-editable field ? The documentation let me
>thing it's not forbidden, but... is it safe ?
Yes, it's safe. I learned it in the developers class in order to
initialize "labels" that I wanted to be right justified and bold.
Here's my code:
/***********************************************************************
*
* FUNCTION: SetTextFieldFromStringResource
*
* DESCRIPTION: This routine sets a read only
* text field from a string resource.
*
* PARAMETERS: FormPtr pFrm
* UInt16 FieldID
* DmResID StringResource
*
* RETURNED: nothing
*
* REVISION HISTORY:
*
* 8/19/2001 edg Added to convenience.h
*
*
***********************************************************************/
extern void SetTextFieldFromStringResource(
FormPtr pFrm,UInt16 FieldID,DmResID StringResource) {
MemHandle hStringRes;
UInt16 uwObjIdx;
FieldPtr pFld;
FontID oldFont;
if(StringResource != NULL)
hStringRes = DmGetResource('tSTR',StringResource);
else
hStringRes = NULL;
uwObjIdx=FrmGetObjectIndex(pFrm,FieldID);
pFld = (FieldPtr) FrmGetObjectPtr(pFrm,uwObjIdx);
oldFont = FntSetFont(boldFont);
FldSetTextHandle(pFld,hStringRes);
FntSetFont(oldFont);
if(StringResource != NULL)
DmReleaseResource(hStringRes);
}
I call this in both FormInit (with the ID of a resource):
SetTextFieldFromStringResource(frmP,
LabelField, // field ID of label field
LabelString); // resource ID of string resource
and again with a NULL resource at FormDeinit.
SetTextFieldFromStringResource(frmP,
LabelField,
NULL);
Bear in mind that I'm a newbie to this, but the code is working. Perhaps a
more experienced person will tell us if I'm doing anything wrong.
</edg>
>-- Denis.
>
>
>// on frmOpenEvent :
>
>pText = getTextPtr(); // which returns a MemPtrNew'ed pointer
>if (pText)
> FldSetTextPtr(fld, pText);
>else
>{
> hText = DmGetResource(...);
> FldSetTextHandle(fld, hText);
>}
>
>...
>
>// on frmCloseEvent :
>
>hText = FldGetTextHandle(fld);
>if (hText)
>{
> DmReleaseResource(...);
> FldSetTextHandle(fld, 0);
>}
>else
>{
> pText = FldGetTextPtr(fld);
> MemPtrFree(pText);
>}
>
>
>
>--
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