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L_AnnSetShowFlags

#include "l_bitmap.h"

L_LTANN_API L_INT L_AnnSetShowFlags(hObject, uShowFlags, uFlags)

Determines how the rulers will be displayed.

Parameters

HANNOBJECT hObject

Handle to the annotation object.

L_UINT uShowFlags

Flag that indicates how to display the rulers. Possible values are:

Value	Meaning
0	Do not display the ruler length or the ruler gauge or the tic marks. In this case, the ruler looks like a line.
ANNSHOW_LENGTH	Display the ruler length.
ANNSHOW_GAUGE	Display the ruler gauge.
ANNSHOW_TICMARKS	Display the tic marks.

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.
ANNFLAG_CHECKMENU	[0x0020] Process objects only if the ANNAUTOTEXT_MENU_SHOWRULER menu item has been selected.

Returns

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

Comments

This function is valid for the following objects:

ANNOBJECT_CROSSPRODUCT
ANNOBJECT_POLYRULER
ANNOBJECT_PROTRACTOR
ANNOBJECT_RULER

In addition, the Automation object stores the show flag settings along with the other object default settings.

For Protractor objects, the default value for uShowFlags is 0. For the Ruler, PolyRuler, and Cross-Product objects the default value for uShowFlags is ANNSHOW_LENGTH | ANNSHOW_TICMARKS.

Required DLLs and Libraries

LTANN
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

Functions

L_AnnGetShowFlags

Topics

Example

L_INT EXT_CALLBACK ShowFlagsAnnEnumCallback(HANNOBJECT   hObject, L_VOID*       pUserData) 
{ 
   UNREFERENCED_PARAMETER(pUserData); 
   L_UINT   Type, ShowFlags; 
 
   L_AnnGetType(hObject, &Type); 
   switch(Type) 
   { 
   case ANNOBJECT_PROTRACTOR: 
   case ANNOBJECT_RULER: 
   case ANNOBJECT_CROSSPRODUCT: 
   case ANNOBJECT_AUTOMATION: 
      L_AnnGetShowFlags(hObject, &ShowFlags); 
      if (ShowFlags != 0) 
         ShowFlags = 0; 
      else 
         ShowFlags = ANNSHOW_LENGTH|ANNSHOW_GAUGE; 
      L_AnnSetShowFlags(hObject, ShowFlags, 0); 
      break; 
   default: 
      MessageBox(NULL, TEXT("This object is not a protractor, ruler, cross-product or automation object."), TEXT("Notice"), MB_OK); 
   } 
   return SUCCESS; 
} 
 
L_INT AnnSetShowFlagsExample(HANNOBJECT hContainer) 
{ 
   L_INT nRet; 
   nRet = L_AnnEnumerate(hContainer, (ANNENUMCALLBACK) ShowFlagsAnnEnumCallback, NULL, ANNFLAG_RECURSE|ANNFLAG_SELECTED, NULL); 
   if(nRet != SUCCESS) 
      return nRet; 
   return SUCCESS; 
}

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