GUI Resizing and parameter values loss

[Andi!]

When resizing the gui like it is shown in the IPlugGUIResize example, attached controls are automatically deleted. So after resizing you have to attach all the controls again. But the values and default values stored in the controls are also lost during deletion. When attaching the controls again, the true parameter values don't match the values stored in the control (mValue / mDefaultValue) resulting in a strange behaviour in the gui. I solved it by adding the below code to the IControl constructor. Maybe it would be helpful to add this to the "wdl-ol" ?

Thanks.

  IControl(IPlugBase* pPlug, IRECT pR, int paramIdx = -1, IChannelBlend blendMethod = IChannelBlend::kBlendNone)
    : mPlug(pPlug), mRECT(pR), mTargetRECT(pR), mParamIdx(paramIdx), mValue(0.0), mDefaultValue(-1.0),
      mBlend(blendMethod), mDirty(true), mHide(false), mGrayed(false), mDisablePrompt(true), mDblAsSingleClick(false),
      mClampLo(0.0), mClampHi(1.0), mMOWhenGreyed(false), mTextEntryLength(DEFAULT_TEXT_ENTRY_LEN), 
      mValDisplayControl(0), mNameDisplayControl(0), mTooltip("")
  {
	  if (paramIdx > -1) {
		  IParam *par = GetParam();
		  if (par) {
			  mValue = par->GetNormalized();
			  mDefaultValue = par->GetDefaultNormalized();
		  }
	  }
  }

[jack461]

Is there a reason why controls are deleted when resizing the plugin window ? It takes a lot of work to save and restore all the stuff associated to the controls...

[Andi!]

Good question. I know that the drawing bitmaps are deleted and reallocated during resizing. I tried to deactivate the new allocation but that resulted in undefined dumps when the Thread is in a drawing method for a WM_PAINT-Message, but it worked for some time... :-)