[RESOLVED] flickering problem Button with PNG image.

[smallbit]

Hi Guys,
I have tried to implement a mix of both of your solution in a custom control, but I am still getting the flicker however very tiny like from the Cthulu's solution, probably Eri's idea doesn't work correctly here or I have done something wrong.

Here is the code of the user control that i am dragging then to the form.

#pragma once
using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;


namespace flicker {

	/// <summary>
	/// Summary for PanREAL
	/// </summary>
	public ref class PanREAL : public System::Windows::Forms::UserControl
	{
	public:
		PanREAL(void)
		{
			InitializeComponent();
			SetStyle(ControlStyles::Opaque | ControlStyles::OptimizedDoubleBuffer | ControlStyles::UserPaint , true);
			//
			//TODO: Add the constructor code here
			//
		}

	protected:
		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		~PanREAL()
		{
			if (components)
			{
				delete components;
			}
		}
	public: System::Windows::Forms::Button^  button2;
	private: System::Windows::Forms::Timer^  timer1;
	public: 
		int loc;
	private: System::ComponentModel::IContainer^  components;
	protected: 

	protected: 
		
	private:
		/// <summary>
		/// Required designer variable.
		/// </summary>


#pragma region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		void InitializeComponent(void)
		{
			this->components = (gcnew System::ComponentModel::Container());
			System::ComponentModel::ComponentResourceManager^  resources = (gcnew System::ComponentModel::ComponentResourceManager(PanREAL::typeid));
			this->button2 = (gcnew System::Windows::Forms::Button());
			this->timer1 = (gcnew System::Windows::Forms::Timer(this->components));
			this->SuspendLayout();
			// 
			// button2
			// 
			this->button2->BackColor = System::Drawing::Color::Transparent;
			this->button2->BackgroundImage = (cli::safe_cast<System::Drawing::Image^  >(resources->GetObject(L"button2.BackgroundImage")));
			this->button2->BackgroundImageLayout = System::Windows::Forms::ImageLayout::Center;
			this->button2->FlatAppearance->BorderSize = 0;
			this->button2->FlatStyle = System::Windows::Forms::FlatStyle::Flat;
			this->button2->Location = System::Drawing::Point(3, 3);
			this->button2->Name = L"button2";
			this->button2->Size = System::Drawing::Size(63, 60);
			this->button2->TabIndex = 1;
			this->button2->Text = L"button1";
			this->button2->UseVisualStyleBackColor = false;
			// 
			// timer1
			// 
			this->timer1->Tick += gcnew System::EventHandler(this, &PanREAL::timer1_Tick);
			// 
			// PanREAL
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->BackColor = System::Drawing::SystemColors::ActiveCaption;
			this->BackgroundImage = (cli::safe_cast<System::Drawing::Image^  >(resources->GetObject(L"$this.BackgroundImage")));
			this->BackgroundImageLayout = System::Windows::Forms::ImageLayout::Stretch;
			this->Controls->Add(this->button2);
			this->Name = L"PanREAL";
			this->Size = System::Drawing::Size(436, 412);
			this->Load += gcnew System::EventHandler(this, &PanREAL::PanREAL_Load);
			this->Paint += gcnew System::Windows::Forms::PaintEventHandler(this, &PanREAL::PanREAL_Paint);
			this->ResumeLayout(false);

		}
#pragma endregion
	private: System::Void PanREAL_Paint(System::Object^  sender, System::Windows::Forms::PaintEventArgs^  e) {

             	 System::Drawing::Rectangle  temp(0,0,ClientSize.Width,ClientSize.Height );
				 temp.Width+=3;
				 temp.Height+=3;
				// currentImage3 = splitContainerBajoVisual->Panel2->BackgroundImage;
				 e->Graphics->DrawImage(this->BackgroundImage,temp);
				 e->Graphics->DrawImage(this->button2->BackgroundImage, button2->Bounds);
			 }
	private: System::Void timer1_Tick(System::Object^  sender, System::EventArgs^  e) {
				 
				 loc+=5;
				 if(loc>600)
				 loc=0;
				 Drawing::Region ^rgToInvalidate = gcnew Drawing::Region(button2->Bounds);
				 button2->Location = System::Drawing::Point(loc,loc);
				 rgToInvalidate->Union(button2->Bounds);  // Add new button area
				 
             // Invalidate the union of the old and new button areas

             Invalidate(rgToInvalidate);
			 }
	private: System::Void PanREAL_Load(System::Object^  sender, System::EventArgs^  e) {
				 loc=0;
				 timer1->Start();
			 }
};
}

Anyway The Eris solution applied directly on the form is 100% flicker free Good job