L_AnnSetTextOptions

#include "l_bitmap.h"

L_LTANN_API L_INT L_AnnSetTextOptions (hObject, pTextOptions, uFlags);

Sets the text options for the annotation object.

Parameters

HANNOBJECT hObject

Handle to the annotation object.

pANNTEXTOPTIONS pTextOptions

Pointer to an ANNTEXTOPTIONS structure that specifies the text options to set.

L_UINT uFlags

Flags that determine which objects to process. Most of the flags apply only to container objects. You can combine values when appropriate by using a bitwise OR ( | ). The following are valid values:

Value Meaning
0 Process only the specified object.
ANNFLAG_SELECTED [0x0001] Process only objects that have the selected property set to TRUE. For getting and setting the selected property, use the L_AnnGetSelected and L_AnnSetSelected functions.
ANNFLAG_NOTTHIS [0x0004] Process only one level of objects within the specified container, not the container itself. If there are containers within the container, they are modified, but the objects within them are not.
ANNFLAG_RECURSE [0x0008] Process objects within a container, and within any subcontainers, down to any level.
ANNFLAG_NOTCONTAINER [0x0002] (Used with ANNFLAG_RECURSE) Process objects within containers, not the containers themselves.
ANNFLAG_NOINVALIDATE [0x0010] Do not invalidate the affected rectangle in the window. Use this to avoid generating unwanted paint messages.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

Use this function to set the text options of any annotation object that uses text. To use this function, declare a variable of type ANNTEXTOPTIONS, and pass the address of this variable for pTextOptions. For more information, refer to the documentation for the structure ANNTEXTOPTIONS.

The hObject parameter must be one of the following types:

Otherwise ERROR_FEATURE_NOT_SUPPORTED is returned.

Note: You must first enable this function by calling L_AnnSetOptions with the OPTIONS_NEW_TEXT_OPTIONS flag.

Required DLLs and Libraries

Platforms

Win32, x64.

See Also

Functions

Topics

Example

The following example changes some of the text options of a text-based annotation. It changes the text color to blue, and toggles the ShowBorder option.

L_INT AnnSetTextOptionsExample(HANNOBJECT hObject) 
{ 
   L_INT          nRet = SUCCESS; 
   ANNTEXTOPTIONS TextOptions; 
   L_UINT         uOptions = 0; 
   L_TCHAR        szMsg[200]; 
 
   nRet = L_AnnGetOptions(&uOptions); 
   if(nRet != SUCCESS) 
      return nRet; 
   uOptions |= OPTIONS_NEW_TEXT_OPTIONS; 
   nRet = L_AnnSetOptions(NULL, uOptions); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   memset(&TextOptions, 0, sizeof(ANNTEXTOPTIONS)); 
   TextOptions.uStructSize = sizeof(ANNTEXTOPTIONS); 
   TextOptions.uFlags = ANNTEXT_SHOW_TEXT | ANNTEXT_SHOW_BORDER | ANNTEXT_TEXTCOLOR; 
   nRet = L_AnnGetTextOptions(hObject, &TextOptions, sizeof(ANNTEXTOPTIONS)); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   wsprintf(szMsg, TEXT("Old Options: ShowText[%d], ShowBorder[%d], TextColor[0x%x]"), 
      TextOptions.bShowText, 
      TextOptions.bShowBorder, 
      TextOptions.crText); 
 
   MessageBox(NULL, szMsg, TEXT(""), MB_OK); 
 
   // Change some options 
   TextOptions.bShowBorder = !TextOptions.bShowBorder; 
   TextOptions.crText = RGB(0,0,255); 
   TextOptions.uFlags = ANNTEXT_SHOW_BORDER | ANNTEXT_TEXTCOLOR; 
   nRet = L_AnnSetTextOptions(hObject, &TextOptions, 0); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   memset(&TextOptions, 0, sizeof(ANNTEXTOPTIONS)); 
   TextOptions.uStructSize = sizeof(ANNTEXTOPTIONS); 
   TextOptions.uFlags = ANNTEXT_SHOW_TEXT | ANNTEXT_SHOW_BORDER | ANNTEXT_TEXTCOLOR; 
   nRet = L_AnnGetTextOptions(hObject, &TextOptions, sizeof(ANNTEXTOPTIONS)); 
   if (nRet != SUCCESS) 
      return nRet; 
 
   wsprintf(szMsg, TEXT("New Options: ShowText[%d], ShowBorder[%d], TextColor[0x%x]"), 
      TextOptions.bShowText, 
      TextOptions.bShowBorder, 
      TextOptions.crText); 
 
   MessageBox(NULL, szMsg, TEXT(""), MB_OK); 
   return SUCCESS; 
} 

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