运行不起来，可以提供下完整的demo吗

[reghtml]

运行提示如下：

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x20 pc=0x52a42c]

goroutine 1 [running]:
github.com/suiyunonghen/GVCL/Components/Controls.(*WApplication).Run(0xc000148000)
D:/GO/GOPATH/src/github.com/suiyunonghen/GVCL/Components/Controls/Forms.go:154 +0xec
main.main()
D:/GO/GoProject/003-gvcl/main.go:69 +0x2cd

Process finished with exit code 2

我的代码：
package main

import (
controls "github.com/suiyunonghen/GVCL/Components/Controls"
"github.com/suiyunonghen/GVCL/WinApi"
)

type GForm1 struct {
controls.GForm
Button1 *controls.GButton
Edit1 *controls.GEdit
}

func NewForm1(app *controls.WApplication) *GForm1 {
frm := new(GForm1)
frm.SubInit()
frm.Button1 = controls.NewButton(frm)
frm.Button1.SetWidth(80)
frm.Button1.SetHeight(30)
frm.Button1.SetLeft(frm.Width() - 90)
frm.Button1.SetTop(frm.Height() - 80)
frm.Button1.SetCaption("确定关闭")

frm.Edit1 = controls.NewEdit(frm)
frm.OnClose = func(sender interface{}, closeAction *int8) {
	*closeAction = controls.CAFree
}
frm.Button1.OnClick = func(sender interface{}) {
	WinApi.MessageBox(frm.GetWindowHandle(), "sadf", "Asdf", 64)
	frm.SetModalResult(controls.MrOK)
}
return frm

}

func main() {
app := new(controls.WApplication)
app.ShowMainForm = true
m := app.CreateForm()
m.SetLeft(200)
m.SetTop(50)
m.SetCaption("测试窗体")

e := controls.NewEdit(m)
e.SetName("Edit1")
e.SetLeft(10)
e.SetWidth(100)
e.SetHeight(20)
e.SetCaption("测试")
b := controls.NewButton(m)
b.SetDefault(true)
b.SetLeft(120)
b.SetCaption("创建窗体")
b.OnClick = func(sender interface{}) {
	tmpm := NewForm1(app)
	tmpm.SetCaption(e.GetText())
	if tmpm.ShowModal() == controls.MrOK {
		WinApi.MessageBox(tmpm.GetWindowHandle(), "程序确定退出", "消息", 64)
	}
}

b1 := controls.NewButton(m)
b1.SetCaption("关闭")
b1.SetLeft(100)
b1.SetTop(40)
b1.OnClick = func(sender interface{}) {
	b.SetVisible(!b.Visible())
	b.SetCaption("测试")
}
app.Run()

}

[suiyunonghen]

运行提示如下：

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x20 pc=0x52a42c]

goroutine 1 [running]:
github.com/suiyunonghen/GVCL/Components/Controls.(*WApplication).Run(0xc000148000)
D:/GO/GOPATH/src/github.com/suiyunonghen/GVCL/Components/Controls/Forms.go:154 +0xec
main.main()
D:/GO/GoProject/003-gvcl/main.go:69 +0x2cd

Process finished with exit code 2

我的代码：
package main

import (
controls "github.com/suiyunonghen/GVCL/Components/Controls"
"github.com/suiyunonghen/GVCL/WinApi"
)

type GForm1 struct {
controls.GForm
Button1 *controls.GButton
Edit1 *controls.GEdit
}

func NewForm1(app *controls.WApplication) *GForm1 {
frm := new(GForm1)
frm.SubInit()
frm.Button1 = controls.NewButton(frm)
frm.Button1.SetWidth(80)
frm.Button1.SetHeight(30)
frm.Button1.SetLeft(frm.Width() - 90)
frm.Button1.SetTop(frm.Height() - 80)
frm.Button1.SetCaption("确定关闭")

frm.Edit1 = controls.NewEdit(frm)
frm.OnClose = func(sender interface{}, closeAction *int8) {
	*closeAction = controls.CAFree
}
frm.Button1.OnClick = func(sender interface{}) {
	WinApi.MessageBox(frm.GetWindowHandle(), "sadf", "Asdf", 64)
	frm.SetModalResult(controls.MrOK)
}
return frm

}

func main() {
app := new(controls.WApplication)
app.ShowMainForm = true
m := app.CreateForm()
m.SetLeft(200)
m.SetTop(50)
m.SetCaption("测试窗体")

e := controls.NewEdit(m)
e.SetName("Edit1")
e.SetLeft(10)
e.SetWidth(100)
e.SetHeight(20)
e.SetCaption("测试")
b := controls.NewButton(m)
b.SetDefault(true)
b.SetLeft(120)
b.SetCaption("创建窗体")
b.OnClick = func(sender interface{}) {
	tmpm := NewForm1(app)
	tmpm.SetCaption(e.GetText())
	if tmpm.ShowModal() == controls.MrOK {
		WinApi.MessageBox(tmpm.GetWindowHandle(), "程序确定退出", "消息", 64)
	}
}

b1 := controls.NewButton(m)
b1.SetCaption("关闭")
b1.SetLeft(100)
b1.SetTop(40)
b1.OnClick = func(sender interface{}) {
	b.SetVisible(!b.Visible())
	b.SetCaption("测试")
}
app.Run()

}

那个建立Application的时候，不要你创建，需要用GVCL中的函数
app := controls.NewApplication()
然后里面提供有一个例子啊，test就是的啊